Muscle Identification Flashcards by Bria Thompson

ID the Muscle at 1.
Action: Origin: Insertion:

Pectineus
action: adducts thigh @ hip
origin: pubic bone
insertion: linea aspera of femur

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ID the muscle at 14b.
Action: Origin: Insertion:

Extensor Carpi Radialis Brevis
action: extends hand @ wrist (also abducts)
origin: lateral epicondyle of humerus
insertion: metacarpals (#2 & #3)

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ID the Muscle at 7a.
Action: Origin: Insertion:

Fibularis Longus
action: plantar flexes foot
origin: head of fibula
insertion: longus: base of 1st metatarsal (plantar surface)

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ID Muscle at 6.
Action: Origin: Insertion:

Rectus Abdominis

Action: Compresses abdomen, flexes trunk @ waist

Origin: Pubic bones, symphysis pubis

Insertion: Inferior margin of ribcage (ribs 5-7), xyphoid

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ID the muscle at C.
Action: Origin: Insertion:

Teres Major

Action: adducts and medially rotates humerus @ shoulder

Origin: lateral border of scapula (near inferior angle)

Insertion: lesser tubercle of humerus (actually medial lip of intertuburcular groove)

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ID the Muscle at D.
Action: Origin: Insertion:

Gracilis
action: adducts thigh @ hip, flexes leg @ knee
insertion: pubic bone and ischium
insertion: medial epicondyle of tibia

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ID the Muscle at 12.
Action: Origin: Insertion:

Semimembranosus (bun)
action: extends thigh @ hip, flexes leg @ knee
origin: ischial tuberosity
insertion: medial epicondyle of tibia

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ID Muscle at 3.
Action: Origin: Insertion: Innervation:

**Lateral Rectus
**
Action: turns eye laterally = abducts eye, “look to side”

Innervation: CN VI Abducens

Origin: sphenoid bone at the margin of the optic foramen
Insertion: Lateral Eye

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ID the Muscle at 7b.
Action: Origin: Insertion:

Fibularis Brevis
Action: plantar flexes foot
origin: head of fibula
insertion: brevis: base of 5th metatarsal (plantar surface)

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ID the muscle at I.
Action: Origin: Insertion:

Rhomboideus Major
Action: retracts scapula (depresses shoulder)
Origin: spinous process of T1-T5
Insertion: Inferior vertebral border of scapula

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ID the muscle at F.
Action: Origin: Insertion:

Romboideus Minor

Action: pulls scapula back “retraction” (also depresses shoulder)

Origin: spinous process of C7-T1

Insertion: Vertebral border of scapula

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ID Muscle at 3.
Action: Origin: Insertion:

External Abdominal Oblique

Action: compress abdomen, flex and rotate trunk @ waist

Origin: Posterior - pelvis and sacrum (iliac crest, sacrum, lumbodorsal fascia)

Insertion: Anterior - inferior portion of linea alba (iliac crest and pubis)

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ID the muscle at 10.
Action: Origin: Insertion:

Flexor Carpi Ulnaris
Action: flexes hand @ wrist (also adducts hand)
Origin: medial epicondyle of humerus
Insertion: carpals near distal end of ulna (5th metacarpal)

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ID the muscle at E.
Action: Origin: Insertion:

Serratus Anterior

Action: pulls scapulae forward = protraction

Origin: ribs 1-8

Insertion: Vertebral border of scapula

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ID the Muscle at B.
Action: Origin: Insertion:

Gluteus Maximus
action: extends and laterally rotates thigh @ hip
origin: iliac crest, sacrum
insertion: iliotibial tract @ posterior femur

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ID Muscle at 8a.
Action: Origin: Insertion:

Digastric (anterior belly)

Action: elevates hyoid and larynx (closes airways for swallowing)

Origin: Posterior belly: mastoid process, Anterior belly: inferior mandible at chin

Insertion: hyoid @ trachea

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ID the muscle at D.
Action: Origin: Insertion:

Latissimus Dorsi

Action: Extends, adducts and medially rotates humerus @ shoulder.

Origin: lumbodorsal fascia (spinous process of T6-L5, iliac crest & sacrum)

Insertion: lesser tubercle of humerus (inferior margin of intertubercular groove)

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ID the muscle at G.
Action: Origin: Insertion:

External Abdominal Oblique

Action: compress abdomen, flex and rotate trunk @ waist

Origin: posterior - inferior margin of rib cage (lower ribs (5-12)

Insertion: Anterior-inferior portion of linea alba (also iliac crest and pubis)

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ID the muscle at 14a.
Action: Origin: Insertion:

Extensor Carpi Radialis Longus
action: extends hand @ wrist (also abducts)
origin: lateral epicondyle of humerus
insertion: metacarpals (#2 & #3)

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ID the muscle at 6.
Action: Origin: Insertion:

Rhomboideus Minor

Action: pulls scapula back = “retraction” (also depresses shoulder)

Origin: spinous process of C7-T1

Insertion: vertebral border of scapula

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ID Muscle at 3.
Action:

**Orbicularis oris
**
Action: compresses, purses lips “kiss”

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ID the Muscle at 10.
Action: Origin: Insertion:

Gluteus Medius
action: abducts and medially rotates thigh @ hip
origin: iliac crest
insertion: greater trochanter of femur

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ID the muscle at 3.
Action: Origin: Insertion:

**Serratus Anterior ** “boxers muscle”

Action: pulls scapulae forward = “protraction”

Origin: Ribs 1-8

Insertion: Vertebral border of scapula

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ID the muscle at 2.
Action: Origin: Insertion:

Pectoralis Minor

Action: Pulls scapulae forward = “protraction”

Origin: Ribs 3-5

Insertion: Coracoid process of scapula

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ID the muscle at 4. Action: Origin: Insertion:

**Deltoid** Action: abducts humerus @ shoulder (also can flex, extend, and rotate humerus) Origin: Clavicle, spine, and acromion of scapula Insertion: Deltoid tuberosidy of humerus

ID the Muscle at C. Action: Origin: Insertion:

Adductor Magnus action: adducts thigh @ hip insertion: pubic bone insertion: linea aspera of femur

ID Muscle at 6. Action: Origin: Insertion:

**Rectus Abdominis** Action: compresses abdomen, flexes trunk @ waist Origin: pubic bones, symphysis pubis Insertion: Inferior margin of ribcage (ribs 5-7), xyphoid

ID the Muscle at 1. Action: Origin: Insertion:

Pectineus action: adducts thigh @ hip origin: pubic bone insertion: linea aspera of femur

ID Muscle at 7. Action: Origin: Insertion:

**Sternohyoid** Action: depresses hyoid and larynx (opens airways for breathing) Origin: Clavicle and Manubrium Insertion: Hyoid (inferiorly)

ID Muscle at A. Action:

**Occipitofrontalis **(epicranius) Occipitalis portion action: raises eyebrow, wrinkles forehead

ID the Muscle at 10. Action: Origin: Insertion:

Biceps Femoris action: extends thigh @ hip, flexes leg @ knee origin: long head: ischial tuberosity, short head: linea aspera insertion: lateral epicondyle of tibia (and head of fibula)

ID the muscle at F. Action: Origin: Insertion:

**Latissimus Dorsi** Action: extends, adducts, and medially rotates humerus @ shoulder Origin: lumbodorsal fascia (spinous process of T6-L5, iliac crest & sacrum) Insertion: lesser tubercle of humerus (inferior margin of intertubercular groove)

ID Muscle at 8b. Action: Origin: Insertion:

**Digastric** (posterior belly) Action: elevates hyoid & larynx (closes airways for swallowing) Origin: Posterior belly: mastoid process; Anterior belly: inferior mandible (at chin) Insertion: Hyoid @ Trachea

ID the Muscle at 3. Action: Origin: Insertion:

Vastus Medialis action: extends leg @ knee Origin: anterior shaft of femur insertion: tibial tuberosity indirectly via quadriceps tendon, patella, and patellar ligament

ID Muscle at 5. Action: Origin: Insertion: Innervation:

**Superior Oblique ** Action: rotates eye medially (and downwards) Innervation: CN IV - trochlear Origin: sphenoid bone at the margin of the optic foramen note: tendon passes through a trochlea (pulley) in upper anteromedial orbit Insertion: superior / lateral eye

ID the muscle at C. Action: Origin: Insertion:

Sternocleidomastoid Action: rotation of head (individually)

ID Muscle at D. Action: Origin: Insertion:

**Masseter ** action: elevates mandible (at temporomandibular joint) origin: zygomatic arch insertion: lateral surface of ramus of mandible

ID Muscle at 4. Action: Origin: Insertion:

**Zygomaticus** (major and minor) Action: Retracts and elevates corner of mouth "Smile" Origin: Zygomatic bone Insertion: Skin and muscle, corner of mouth

ID the Muscle at 14. Action: Origin: Insertion:

Soleus action: plantar flexes foot origin: head of fibula, medial shaft of tibia insertion: calcaneus via calcaneal tendon (Achilles)

ID the Muscle at 4. Action: Origin: Insertion:

Adductor Magnus action: adducts thigh @ hip origin: pubic bone insertion: linea aspera of femur

ID Muscle at A. Action: Origin: Insertion:

**Temporalis** Action: elevates mandible (@temporomandibular joint) Origin: temporal bone Insertion: coronoid process of mandible

ID the Muscle at B. Action: Origin: Insertion:

Adductor Longus action: adducts thigh @ hip insertion: pubic bone insertion: linea aspera of femur

ID Muscle at 4. Action: Origin: Insertion:

**Zygomaticus** (major & minor) Action: retracts and elevates corner of mouth "smile" Origin: zygomatic bone insertion: skin & muscle at corner of mouth

ID the muscle at 9. Action: Origin: Insertion:

Supraspinatus Action: abducts humerus @ shoulder Origin: supraspinous fossa of scapula Insertion: greater tubercle of humerus

ID the Muscle at 11 (bonus)

Gluteus Minimus (deep to gluteus medius)

ID the muscle at 8. Action: Origin: Insertion:

**Levator Scapulae** Action: elevates scapula Origin: transverse process of C1-C4 Insertion: superior vertebral border of scapula

ID Muscle at B. Action:

**Occipitofrontalis **(epicranius) frontalis portion action: raises eyebrow, wrinkles forehead

ID the Muscle at 8. Action: Origin: Insertion:

Tensor Fascia Latae action: flexes, abducts, and medially rotates thigh @ hip, supports knee laterally origin: anterior iliac crest insertion: iliotibial tract or band (aponeurosis along lateral thigh to lateral tibia)

ID the muscle at 17. Action: Origin: Insertion:

Extensor Digiti Minimi action: extends little finger (also hand @ wrist) orogin: lateral epicondyle of humerus insertion: proximal phalanx of little finger

ID Muscle at 8b. Action: Origin: Insertion:

**Digastric ** (posterior belly) Action: elevates hyoid and larynx (closes airways for swallowing) Origin: Posterior belly: mastoid process, Anterior belly: inferior mandible at chin Insertion: hyoid @ trachea

ID Muscle at 2. Action: Origin: Insertion: Innervation:

**Inferior Rectus ** Action: turns eye downwards "look down" Innervation: CNIII Oculomotor Origin: shenoid bone at the margin of the optic foramen Insertion: Inferior Eye

ID the muscle at 10. Action: Origin: Insertion:

Infraspinatus action: laterally rotates humerus @ shoulder origin: infraspinous fossa of scapula insertion: greater tubercle of humerous (tendon passes posteriorly over joint)

ID Muscle at 4. Action: Origin: Insertion: Innervation:

**Medial Rectus** Action: turns eye medially = adducts eye "look toward midline (Cross eyes) Innervation: CN III occulomotor Origin: sphenoid bone at the margin of the optic foramen Insertion: Medial eye

ID the Muscle at 1. Action: Origin: Insertion:

Rectus Femoris action: flexes thigh @ hip, extends leg @ knee Origin: anterior inferior iliac spine (AIIS) insertion: tibial tuberosity indirectly via quadriceps tendon, patella, and patellar ligament

ID the muscle at 4. Action: Origin: Insertion:

**Deltoid** Action: Abducts humerus @ shoulder (also can flex, extend, and rotate humerus) Origin: Clavicle, spine, and acromion of the scapula Insertion: Deltoid tuberosity of humerus

ID the muscle at 16. Action: Origin: Insertion:

Extensor Carpi Ulnaris action: extends hand @ wrist (also adducts hand @ wrist) origin: lateral epicondyle of humerus insertion: metacarpals (#5)

ID the muscle at 9. Action: Origin: Insertion:

Palmaris Longus action: flexes hand @ wrist origin: medial epicondyle of humerus insertion: fascia of palm (flexor retinaculum)

ID Muscle at 9. Action: Origin: Insertion:

**Sternocleidomastoid** Action: rotation of head (individually), flex head @ neck (both combined) Origin: Manubrium and Clavicle Insertion: Mastoid Process of the Temporal bone

ID Muscle at B. Action:

**Occipitofrontalis** (epicranius) Frontalis Portion Action: raises eyebrow, wrinkles forehead

ID the muscle at 12. Action: Origin: Insertion:

Teres Minor action: lateral rotation of humerus at shoulder origin: lateral border of scapula insertion: greater tubercle of humerus (tendon passes posteriorly over joint)

ID the Muscle at A. Action: Origin: Insertion:

Gluteus Medius action: abducts and medially rotates thigh @ hip origin: iliac crest insertion: greater trochanter of femur

# r Action: l ID the muscle at 10. Action: Origin: Insertion:

Infraspinatus Action: laterally rotates humerus @ shoulder Origin: infraspinous fossa of scapula Insertion: greater tubercle of humerus (tendon passes posteriorly over joint)

ID the muscle at 11. Action: Origin: Insertion:

Deltoid action: abducts humerus @ shoulder (can also flex, extend, and rotate) origin: clavicle, spine and acromion of scpula insertion: deltoid tuberosity of humerus

ID the muscle at C. Action: Origin: Insertion:

Flexor Carpi Radialis action: flexes hand @ wrist (also abducts hand @ wrist) origin: medial epicondyle of humerus insertion: carpals near distal end of radius (also 2nd & 3rd metacarpals)

ID the muscle at 1. Action: Origin: Insertion:

Biceps Brachii Action: flexes and supinates forearm @ elbow (flexes arm @ shoulder) Origin: short head: coracoid process of scapula long head: superior margin of glenoid fossa of the scapula (supra-glenoid tuberosity) Insertion: radial tuberosity of radius

ID Muscle at 5. Action: Origin: Insertion:

**Transversus Abdominis ** Action: compresses abdomen Origin: Posterior - lumbar & lower thoracic vertebrae (lumbodorsal fascia, iliac crest) Insertion: Anterior - linea alba

ID Muscle at C. Action:

**Orbicularis Oculi** Action: closes eyes

ID Muscle at 4. Action: Origin: Insertion: Innervation:

**Medial Rectus ** Action: turns eye medially = adducts eye, "look toward midline" (aka cross eyes) Innervation: CNIII Occulomotor Origin: sphenoid bone at the margin of the optic foramen Insertion: medial eye

ID the muscle at 2. Aciton: Origin: Insertion:

Brachialis action: flexes forearm at elbow origin: anterior shaft of humerus (near deltoid tuberosity) insertion: coronoid process of ulna

ID Muscle at 4. Action: Origin: Insertion:

**Internal Abdominal Oblique** Action: compress abdomen, flex and rotate trunk @ waist Origin: Posterior - pelvis and sacrum (iliac crest, sacrom, lumbodorsal fascia) Insertion: Anterior - superior portion of linea alba and rib cage (ribs (9-12), xyphoid)

ID the muscle at E. Aciton: Origin: Insertion:

Levator Scapulae action: elevates scapula origin: transverse process of C1-C4 insertion: superior vertebral border of scapula (near superior angle)

ID the Muscle at 5. Action: Origin: Insertion:

Gracilis action: adducts thigh @ hip origin: pubic bone insertion: linea aspera of femur

ID the muscle at E. Action: Origin: Insertion:

Flexor Carpi Ulnaris action: flexes hand @ wrist (also adducts hand @ wrist) Origin: medial epicondyle of humerus insertion: carpals near distal end of ulna (also 5th metacarpal)

ID Muscle at 3. Action:

**Orbicularis Oris ** Action: Compresses, purses lips = "kiss"

ID Muscle at 2. Action:

**Orbicularis Oculi ** Action: Closes eyes

ID the Muscle at 4. Action: Origin: Insertion:

Vastus Intermedius (deep to rectus femoris) action: extends leg @ knee Origin: anterior shaft of femur insertion: tibial tuberosity indirectly via quadriceps tendon, patella, and patellar ligament

ID the Muscle at 12. Action: Origin: Insertion:

Piriformis action: abducts and laterally rotates thigh @ hip origin: sacrum insertion: greater trochanter of femur

ID the Muscle at 6. Action: Origin: Insertion:

Tibialis Anterior action: dorsiflexes foot origin: lateral epicondyle of tibia insertion: base of 1st metatarsal (dorsal surface)

ID the muscle at 8. Action: Origin: Insertion:

Flexor Carpi Radialis action: flexes hand @ wrist (also abducts hand) origin: medial epicondyle of humerus insertion: carpals near distal end of radius (2nd & 3rd metacarpals)

ID the Muscle at 6. Action: Origin: Insertion:

Iliacus action: flexes thigh @ hip origin: iliac fossa of ilium insertion: lesser trochanter of femur

ID Muscle at E. Action: Origin: Insertion:

**Sternohyoid** Action: depresses hyoid and larynx (opens airways for breathing) Origin: clavicle and manubrium Insertion: hyoid (inferiorly)

ID the muscle at 3. Action: Origin: Insertion:

**Serratus Anterior** (boxer's muscle) Aciton: Pulls scapulae forward = "protraction" Origin: ribs 1-8 Insertion: vertebral border of scapula

ID the muscle at 10. Action: Origin: Insertion:

Infraspinatus Action: laterally rotates humerus @ shoulder Origin: infraspinous fossa of scapula Insertion: greater tubercle of humerus (tendon passes posteriorly over joint)

ID Muscle at 1. Action: Origin: Insertion: Innervation:

**Superior Rectus ** Action: turns eye upwards "look up" Innervation: CN III - occulomotor Origin: sphenoid bone at the margin of the optic foramen Insertion: superior eye

ID Muscle at 1. Action: Origin: Insertion:

**External Intercostals** Action: elevates ribs, expands thoracic cavity = "inhalation" Origin: Inferior margin of the rib superior to the muscle Insertion: Superior margin of the rib inferior to the muscle

ID the muscle at 9. Action: Origin: Insertion:

Supraspinatus Action: abducts humerus @ shoulder Origin: supraspinous fossa of scapula Insertion: greater tubercle of humerus (tendon passes superiorly over joint)

ID the Muscle at C. Action: Origin: Insertion:

Gracilis action: adducts thigh @ hip, also flexes leg @ knee origin: pubic bone and ischium insertion: medial epicondyle of tibia

ID the Muscle at 1. Action: Origin: Insertion:

**External Abdominal Oblique** Action: compress abdomen, flex and rotate trunk @ waist Origin: posterior - inferior margin of rib cage (lower ribs (5-12)) Insertion: anterior - inferior portion of linea alba (also iliac crest and pubis)

ID the muscle at A. Action: Origin: Insertion:

Brachioradialis action: flexes forearm @ elbow Origin: lateral epicondyle of humerus Insertion: styloid process of radius

ID the muscle 4a. Action: Origin: Insertion:

Triceps Brachii (long head) action: extends forearm at elbow (extends arm at shoulder) origin: long head: inferior margin of glenoid fossa (infraglenoid tuberosity) insertion: olecranon process of ulna

ID the muscle at 3. Action: Origin: Insertion:

Coracobrachialis action: flexes humerus @ shoulder (and adducts) origin: coracoid process of scapula insertion: mid shaft of humerus (near deltoid tuberosity)

ID Muscle at 6. Action: Origin: Insertion:

**Temporalis** action: elevates mandible (at temporomandibular joint) origin: temporal bone insertion: coronoid process of mandible

ID the Muscle at 5. Action: Origin: Insertion:

Gracilis action: adducts thigh @ hip, flexes leg @ knee origin: pubic bone and ischium insertion: medial epicondyle of tibia

ID the Muscle at 8. Action: Origin: Insertion:

Tensor Fascia Latae Action: flexes, abducts and medially rotates thigh @ hip, supports knee laterally origin: anterior iliac crest insertion: iliotibial tract or band

ID Muscle at 1a. Action:

**Occipitofrontalis** (epicranius) frontalis portion Action: raises eyebrow, wrinkles forehead

ID the muscle at 4. Action: Origin: Insertion:

**Deltoid** Action: Abducts humerus @ shoulder (also can flex, extend, rotate humerus) Origin: Ribs 3-5 Insertion: Coracoid process of scapula

ID the Muscle at B. Action: Origin: Insertion:

**Pectoralis Major** Action: adducts humerus @ shoulder (also flexes, and medially rotates humerus) Origin: sternum, clavicle, ribs Insertion: Distal margin of the intertubercular groove (near the deltoid tuberosity)

ID the muscle at 6. Action: Origin: Insertion:

Pronator Teres action: pronates forearm origin: medial epicondyle of humerus insertion: shaft of radius (lateral surface of radius)

ID Muscle at 2. Action: Origin: Insertion:

**Internal Intercostals** Action: depresses ribs, compresses thoracic cavity "exhalation" Origin: superior margin of the rib inferior to the muscle Insertion: Inferior margin of the rib superior to the muscle

ID the Muscle at 9. Action: Origin: Insertion:

Extensor Hallucis Longus action: extends hallux origin: fibula insertion: hallux (dorsal surface)

ID the Muscle at 5. Action: Origin: Insertion:

**Trapezius** Action: retracts and elevates scapula (also elevates clavicle, extends head) Origin: Occipital bone, spinous process of C1-T12 Insertion: Clavicle, spine, and acromion of the scapula

ID Muscle at 5. Action: Origin: Insertion: Innervation:

**Superior Oblique** Action: rotates eye medially (and downwards) Innervation: CN IV - trochlear Origin: Sphenoid bone at the margin of the optic foramen note: tendon passes through a trochlea ("pulley") in upper anteromedial orbit Insertion: superior / lateral eye

ID Muscle at F. Action: Origin: Insertion:

**Sternocleidomastoid** Action: rotaiton of head (individually), flex head @ neck (both combined) Origin: manubrium of clavicle Insertion: mastoid process of temporal bone

ID the muscle at 5. Action: Origin: Insertion:

**Trapezius** Action: retracts and elevates scapula (also elevates clavicle, extends head) Origin: Occipital bone, spinous process of C1-T12 Insertion: clavicle, spine and acromion of the scapula

ID the Muscle at 2. Action: Origin: Insertion:

Adductor Longus action: adducts thigh @ hip origin: pubic bone insertion: linea aspera of femur

ID Muscle at 1a Action:

**Occipitofrontalis** (epicranius) frontalis portion Action: raises eyebrows, wrinkles forehead

ID the Muscle at 7. Action: Origin: Insertion:

Psoas action: flexes thigh @ hip origin: bodies and transverse processes of vertebrae T12-L5 insertion: lesser trochanter of femur

ID the Muscle at 8. Action: Origin: Insertion:

Extensor Digitorum Longus action: extends phalanges origin: fibula insertion: phalanges

ID the muscle at 9. Action: Origin: Insertion:

Supraspinatus action: abducts humerus @ shoulder origin: supraspinous fossa of scapula insertion: greater tubercle of humerus (tendon passes superiorly over joint)

ID the Muscle at 5. Action: Origin: Insertion:

Sartorius (longest muscle in the body) action: flexes thigh @ hip, extends leg @ knee, laterally rotates thigh @ hip (crosses legs) Origin: anterior superior iliac spine (ASIS) insertion: medial epicondyle of tibia

ID Muscle at 2. Action: Origin: Insertion: Innervation:

**Inferior Rectus ** Action: turns eye downwards "look down" Innervation: CN III - occulomotor Origin: Sphenoid bone at the margin of the optic foramen Insertion: Inferior Eye

ID the muscle at 14. Action: Origin: Insertion:

Latissiumus Dorsi Action: extends, adducts, and medially rotates humerus @ shoulder Origin: Lumbodorsal fascia (spinous process of T6-L5, iliac crest and sacrum) Insertion: lesser tubercle of humerus (inferior margin of intertubercular groove)

ID the Muscle at 14. Action: Origin: Insertion:

**Latissimus Dorsi** Action: extends, adducts, and medially roatates humerus @ shoulder Origin: lumbodorsal fascia (spinous process of T6-L5, iliac crest & Sacrum) Insertion: lesser tubercle of humerus (inferior margin of intertuburcular groove)

ID the Muscle at 2. Action: Origin: Insertion:

Vastus Lateralis action: extends leg @ knee Origin: lateral shaft of femur insertion: tibial tuberosity indirectly via quadriceps tendon, patella, and patellar ligament

ID Muscle at 4. Action: Origin: Insertion:

**Internal abdominal oblique** Action: compress abdomen, flex and rotate trunk @ waist Origin: Posterior - pelvis and sacrum (iliac crest, sacrum, & lumbodorsal fascia) Insertion: Anterior - superior portion of linea alba and rib cage (ribs (9-12), xyphoid)

ID the Muscle at 4. Action: Origin: Insertion:

Adductor Magnus action: adducts thigh @ hip origin: pubic bone insertion: linea aspera of femur

ID the Muscle at 3. Action: Origin: Insertion:

Adductor Longus action: adducts thigh @ hip origin: pubic bone insertion: linea aspera of femur

ID the muscle at 11. Action: Origin: Insertion:

Flexor Digitorum Superficialis Action: flexes fingers (also hand @ wrist) origin: anterior surface of radius and ulna insertion: middle phalanges

ID the Muscle at 13. Action: Origin: Insertion:

Gastrocnemius action: plantar flexes foot, assists in flexing leg @ knee origin: medial and lateral condyles of femur insertion: calcaneus via calcaneal tendon (Achilles)

ID the Muscle at A. Action: Origin: Insertion:

Pectineus action: adducts thigh @ hip insertion: pubic bone insertion: linea aspera of femur

ID the Muscle at 13. Action: Origin: Insertion:

Teres Major Action: Adducts and medially rotates humerus @ shoulder Origin: Lateral border of scapula (near inferior angle) Insertion: lesser tubercule of humerus (inferior margin of intertubercular groove)

ID Muscle at G. Action: Origin: Insertion:

**Trapezius** Action: retracts and elevates scapula (also elevates clavicle, extends head) Origin: occipital bone, spinous process of C1-T12 Insertion: clavicle, spine, and acromion of the scapula

ID the Muscle at 5. Action: Origin: Insertion:

Brachioradialis action: flexes forearm @ elbow origin: lateral epicondyle of humerus insertion: styloid process of radius

ID Muscle at 9. Action: Origin: Insertion:

**Sternocleidomastoid** Action: rotation of head (individually), flex head @ neck (both combined) Origin: manubrium and clavicle Insertion: Mastoid process of temporal bone

ID the muscle at A. Action: Origin: Insertion:

Trapezius Action: retracts and elevates scapula (also elevates clavicle, extends head) Origin: occipital bone, spinous process of C1-T12 Insertion: clavicle, spine, and acromion of the scapula

ID Muscle at D. Action: Origin: Insertion:

**Zygomaticus** (major & minor) Action: retracts and elevates corner of mouth "smile" Origin: zygomatic bone Insertion: skin & muscle at corner of mouth

ID Muscle at 6. Action: Origin: Insertion: Innervation:

**Inferior Oblique ** Action: turns eye upwards - "look up" Innervation: CN III - occulomotor Origin: sphenoid bone at the margin of the optic foramen Insertion: superior eye

ID Muscle at 1. Action: Origin: Insertion: Innervation:

**Superior Rectus ** action: turns eye upwards "look up" innervation: CNIII Oculomotor Origin: sphenoid bone at the margin of the optic foramen Insertion: superior eye

ID Muscle at 1b. Action:

**Occipitofrontalis** (epicranius) occipitalis portion action: raises eyebrow, wrinkles forehead

ID the muscle at H. Action: Origin: Insertion:

Teres Minor Action: lateral rotation of humerus @ shoulder Origin: lateral border of scapula Insertion: greater tubercle of humerous (tendon posteriorly over joint)

ID the muscle at B. Action: Origin: Insertion:

Deltoid Action: abducts humerus @ shoulder (also can flex, extend and rotate humerus) Origin: Clavicle, spine and acromion of the scapula Insertion: Deltoid tuberosity of humerus

ID the muscle at 13. Action: Origin: Insertion:

Teres Major action: adducts and medially rotates humerus @ shoulder origin: lateral border of scapula (near inferior angle) insertion: lesser tubercle of humerus (actually medial lip of intertubercular groove)

ID the muscle at A. Action: Origin: Insertion:

**Deltoid** Action: abducts humerus @ shoulder (can flex, extend, and rotate humerus) Origin: clavicle, spine, and acromion of the scapula Insertion: distal margin of the intertubercular groove (near the deltoid tuberosity)

ID the muscle 4b. Action: Origin: Insertion:

Triceps Brachii (short head - lateral) action: extends forearm @ elbow (also extends arm @ shoulder) origin: short head: lateral shaft of humerus insertion: olecranon process of ulna

ID the Muscle at 10. Action: Origin: Insertion:

Gluteus Medius action: abnducts and medially rotates thigh @ hip origin: iliac crest insertion: greater trochanter of femur

ID the muscle at 4. Action: Origin: Insertion:

**Deltoid** Action: abducts humerus @ shoulder (also can flex, extend, and rotate humerus) Origin: Clavicle, spine and acromion of the scapula Insertion: deltoid tuberosity of humerus

ID the muscle at 12. Action: Origin: Insertion:

Teres Minor Action: lateral rotation of humerus @ shoulder Origin: lateral border of scapula Insertion: greater tubercule of humerus (tendon passes posteriorly over joint)

ID Muscle at 5. Action: Origin: Insertion:

**Masseter** Action: elevates mandible (at temporomandibular joint) origin: zygomatic arch insertion: lateral surface of ramus of mandible

ID the Muscle at 12. Action: Origin: Insertion:

Action: abducts and laterally rotates thigh @ hip origin: sacrum insertion: greater trochanter of femur

ID the muscle at 12. Action: Origin: Insertion:

Teres Minor Action: lateral rotation of humerus @ shoulder Origin: lateral border of scapula Insertion: greater tubercle of humerus (tendon passes posteriorly over joint)

ID the muscle at 15. Action: Origin: Insertion:

Extensor Digitorum action: extends fingers (also hand @ wrist) origin: lateral epcondyle of humerus insertion: phalanges

ID the Muscle at 11. Action: Origin: Insertion:

Semitendinosus (hot dog) action: extends thigh @ hip, flexes leg @ knee origin: ischial tuberosity insertion: medial epicondyle of tibia

ID Muscle at 2. Action:

**Orbicularis Oculi ** Action: Closes eyes

ID the Muscle at D. Action: Origin: Insertion:

Adductor Magnus action: adducts thigh @ hip origin: pubic bone insertion: linea aspera of femur

ID the muscle at D. Action: Origin: Insertion:

Palmaris Longus action: flexes hand @ wrist origin: medial epicondyle of humerus Insertion: fascia of palm (and flexor retinaculum)

ID Muscle at 3. Action: Origin: Insertion: Innervation:

**Lateral Rectus ** Action: turns eye laterally = abducts eye "look to side" Innervation: CN VI Abducens Origin: Sphenoid bone at the margin of the optic foramen Insertion: lateral eye

ID the Muscle at B. Action: Origin: Insertion:

Extensor Digiti Minimi action: extends little finger (also hand @ wrist) Origin: lateral epicondyle of humerus insertion: proximal phalanx of little finger

ID Muscle at C. Action: Origin: Insertion:

**Temporalis ** action: elevates mandible (at temporomandibular joint) origin: temporal bone action: coronoid process of mandible

ID the muscle at G. Action: Origin: Insertion:

Infraspinatus Action: laterally rotates humerus @ shoulder Origin: infraspinous fossa of scapula Insertion: greater tubercle of humerus (tendon passes posteriorly over joint)

ID the muscle at 13. Action: Origin: Insertion:

Teres Major Action: adducts and medially rotates humerus @ shoulder Origin: lateral border of scapula (near inferior angle) Insertion: lesser tubercle of humerus (actually medial lip of intertubercular groove)

ID the Muscle at 9. Action: Origin: Insertion:

Gluteus Maximus action: extends and laterally rotates thigh @ hip origin: iliac crest, sacrum insertion: iliotibial tract @ posterior femur (aponeurosis along lateral thigh to lateral tibia)

ID the muscle at A. Action: Origin: Insertion:

Extensor Digitorum action: extends fingers (also hand @ wrist) origin: lateral epiconduyle of humerus insertion: phalanges

ID Muscle at 8a. Action: Origin: Insertion:

**Digastric** (anterior belly) Action: elevates hyoid & larynx (closes airways for swallowing) Origin: Posterior belly - mastoid process; Anterior belly - inferior mandible (at chin) Insertion: Hyoid @ trochlea

ID the Muscle at 7. Action: Origin: Insertion:

Psoas action: flexes thigh @ hip origin: bodies and transverse processes of vertebrae T12-L5 insertion: lesser trochanter of femur

ID the muscle at B. Action: Origin: Insertion:

Flexor Digitorum Superficialis action: flexes fingers (also hand @ wrist) origin: anterior surfaces of radius and ulna insertion: middle phalanges

ID the muscle at D. Action: Origin: Insertion:

**Latissimus Dorsi** Action: extends, adducts and medially rotates humerus @ shoulder Origin: Lumbodorsal fascia (spinous process of T6-L5, iliac crest & sacrum) Insertion: lesser tubercle of humerus (inferior margin of intertubercular groove)

ID the muscle at H. Action: Origin: Insertion:

**Rectus Abdominis** Action: compresses abdomen, flexes trunk @ waist Origin: Pubic bones, symphysis pubis Insertion: Anterior-inferior portion of linea alba (also iliac crest and pubis)

ID Muscle at 7. Action: Origin: Insertion:

**Sternohyoid** Action: depresses hyoid and larynx (opens airways for breathing) Origin: clavicle and manubrium Insertion: hyoid (inferiorly)

ID the muscle at 7. Action: Origin: Insertion:

Rhomboideus Major Action: pulls scapula back = "retraction" (also depresses shoulder) Origin: spinous process of T1-T5 Insertion: inferior vertebral border of scapula

ID the Muscle at 6. Action: Origin: Insertion:

Iliacus action: flexes thigh @ hip origin: iliac fossa of ilium Insertion: lesser trochanter of femur

ID the muscle at 5. Action: Origin: Insertion:

**Trapezius** Action: retracts and elevates scapula (also elevates clavicle, extends head) Origin: occipital bone, spinous process of C1-T12 Insertion: Clavicle, spine, and acromion of the scapula

ID Muscle at 4. Action: Origin: Insertion:

**Zygomaticus** (major & minor) action: retracts and elevates corner of mouth = "smile" origin: zygomatic bone insertion: skin & muscle at corner of mouth

Muscle Identification Flashcards

(162 cards)