1
Q
Trapezius
Origin
Insertion
A
Origin:
- External occipital protuberance
- Nuchal ligament
- Medial superior nuchal line
- Spinous processes C7-T12
Insertion:
- Pos. lateral 1/3 of clavicle, acromion process, spine of scapula
2
Q
Trapezius
Actions
Innervation
A
Actions:
- Retraction
- Sup. Rotation
- Elevation
- Depression
Innervation:
- Motor: Spinal accessory n. (CXI)
- Sensory: C3-4
3
Q
Latissimus dorsi
Origin
Insertion
A
Origin:
- Spinous proceses T6-T12
- Thoracolumbar fascia (to the lumbar spinous processes)
- Iliac crest
- Inferior 3/4 ribs
Insertion:
- Floor of the bicipital groove
4
Q
Latissimus dorsi
Actions
Innervation
A
Actions:
- Adduction;
- Medial rotation;
- Extension of the arm at the glenohumeral joint
Innervation:
- Thoracodorsal n. (C7, C8)
5
Q
Rhomboid Major
Origin
Insertion
A
Origin:
- Spinous processes T2-T5
Insertion:
- Pos. medial scapula; from root of spine to inferior angle
6
Q
Rhomboid Major
Actions
Innervation
A
Actions:
- Elevates and retracts the scapula
Innervation:
- Dorsal scapular n.
- (C5 of brachial plexus)
7
Q
Rhomboid Minor
Origin
Insertion
A
Origin:
- Nuchal ligament
- Spinous processes C7-T1
Insertion:
- Superior to rhomboid major, at the root of spine
8
Q
Rhomboid Minor
Actions
Innervation
A
Actions:
- Elevates and retracts the scapula
Innervation:
- Dorsal scapular n.
9
Q
Levator Scapulae
Origin
Insertion
A
Origin:
- Transverse processes C1-C2
- Pos. tubercles of transverse processes of C3-C4
Insertion:
- Pos. surface of medial scapula from superior angle to root of spine
10
Q
Levator Scapulae
Actions
Innervation
A
Actions:
- Elevates scapula
Innervation:
- C3-C4
- C5 from dorsal scapular n.
11
Q
Sternocleidomastoid
Origin
Insertion
A
Origin:
- Manubrium Sterni
- Medial portion of clavicle
Insertion:
- Mastoid process of the temporal bone
- Superior nuchal line
12
Q
Sternocleidomastoid
Actions
Innervation
A
Actions:
- UNILATERAL:
- neck rotation to opposite side of neck
- neck flexion to same side
- BILATERAL:
- neck flexion raises sternum
- assists in forced expiration
Innervation:
- MOTOR: CN XI spinal accessory
- SENSORY: Cervical plexus
