Thoracic Limb

Question 1

Supraspinatus

Origin, Insertion Innervation, Function

Answer 1

O: Supraspinous Fossa
I: Greater Tubercle
N: suprascapularis
F: Extensor of shoulder joint

Question 2

Infraspinatous

Origin, Insertion Innervation, Function

Answer 2

O: Infraspinous fossa
I: Greater tubercle
N: suprascapularis
F: Flexor of shoulder joint

Question 3

Deltoid Muscle

Origin, Insertion Innervation, Function

Answer 3

O: pars scapularis - Spine of scapula
pars acromialis - acromion
I: Deltoid tuberosity
N: Axillary Nerve
F: Flexor of shoulder joint

Question 4

Teres Minor

Origin, Insertion Innervation, Function

Answer 4

O: Caudal margin of scapula
I: Minor teres tuberosity
N: Axillary nerve
F: Flexor of shuolder joint

Question 5

Teres Major

Origin, Insertion Innervation, Function

Answer 5

O: Caudal margin of Scapula
I: Major teres tuberosity
N: Axillary nerve
F: Flexor of shoulder joint

Question 6

Subscapularis

Origin, Insertion Innervation, Function

Answer 6

O: subscapular fossa
I: Lesser tubercle
N: subscapulares
F: Flexor of shoulder joint

Question 7

Coracobrachialis

Origin, Insertion Innervation, Function

Answer 7

O: Coracoid process
I: Crest of Teres major tuberosity
N: Musculocataneous
F: Extnesor of shoulder joint

Question 8

Brachialis

Origin, Insertion Innervation, Function

Answer 8

O: Distal to the neck of humerus
I: Radial & Ulnar tuberosities
N: musculocutaneous
F: Flexor of elbow joint

Question 9

Biceps brachii

Origin, Insertion Innervation, Function

Answer 9

O: Supraglenoid tubercle
I: Radial tuberosity and medial coronoid process
N: musculocutaneous
F: Flexor of elbow joint

Question 10

Triceps Brachii

Origin, Insertion Innervation, Function

Answer 10

O: Caput Longum - caudal border of scapula
Caput Laterale - deltoid tuberosity
Caput Mediale - close to teres toberosity on medial aspect of humerus
Caput accessorium - caudal part of neck of humerus
I: Olecranon
N: Radial nerve
F: Extensor of elbow joint

Question 11

Aneconeus

Origin, Insertion Innervation, Function

Answer 11

O: distal on humerus and humeral epicondyles
I: Lateral on olecranon
N: Radial nerve
F: Extensor of elbow joint

Question 12

Tensor fasciae antebrachii

Origin, Insertion Innervation, Function

Answer 12

O: m.latissimus dorsi
I: antebrachial fascia
N: Radialis
F: Extensor of elbow joint

Question 13

Brachioradialis longus

Origin, Insertion Innervation, Function

Answer 13

O: Lateral supracondylar crest
I: Radial styloid process
N: Radialis
F: Supination

Question 14

Supinator bervis

Origin, Insertion Innervation, Function

Answer 14

O: Lateral epicondyle of humerus
I: Medial aspect of radius
N: Radialis
F: Supination

Question 15

Pronator Teres

Origin, Insertion Innervation, Function

Answer 15

O: Medial epicondyle of humerus
I: Craniomedial side of radius
N: medianus
F: Pronation

Question 16

Pronator quadratus

Origin, Insertion Innervation, Function

Answer 16

O: Caudal & medial aspect of radial shaft
I: Medial aspect of ulna
N: Medianus
F: Pronation

Question 17

Extensor Carpi radialis

Origin, Insertion Innervation, Function

Answer 17

O: Lateral humeral epicondyle and lateral epicondylar crest
I: Proximal on 2nd & 3rd metacarpal bone
N: radialis
F: Extnesor muscle of carpal joint and fingers

Question 18

Extensor carpi ulnaris

Origin, Insertion Innervation, Function

Answer 18

O: lateral epicondyle of humerus
I: Proximal end of 5th metacarpal bone (Ca)
Acessory, 5th metacarpal (Ru) and lateral split bone (Eq)
N: Radialis
F: Extensor of carpal joint and fingers

Question 19

Flexor carpi radialis

Origin, Insertion Innervation, Function

Answer 19

O: Medial epicondyle of humerus
I: palmar aspect of 2nd & 3rd metacarpal bones (Ca)
2nd metacrapal bone (Eq)
3rd metacarpal bone (Ru/Su)
N: Medianus
F: Flexor of carpal joint and fingers

Question 20

Flexor carpi ulnaris

Origin, Insertion Innervation, Function

Answer 20

O: Caput humerale - Medial epicondyle of humerus
Caput ulnare - Olecranon
I: Accessory carpal bone
N: Ulnaris
F: Flexor of carpal joint and fingers

Question 21

Extensor digitorum Communis

Origin, Insertion Innervation, Function

Answer 21

O: Lateral humeral epicondyle, lateral collateral ligament of elbbow joint
I: Extensory process of distal phalanx
N: radialis
F: Extensor muscle of the carpal joint and fingers

Question 22

Extensor digitorum lateralis

Origin, Insertion Innervation, Function

Answer 22

O: Lateral collateral ligament and lateral tuberosity of proximal radius
I: Distal, middle and proximal phalanx of 5th digit
N: Radialis
F: Extensor of carpal joint and fingers

Question 23

Exntensor digiti 1 et 2

Origin, Insertion Innervation, Function

Answer 23

O: craniolateral border of ulna
I: 1st and 2nd digits and first metacarpal bone
N: radialis
F: Extensor of carpal joint and fingers (1st & 2nd toes)

Question 24

abductor pollicis longus

Origin, Insertion Innervation, Function

Answer 24

O: lateral on radius
I: 1st metacarpal
N: Radialis
F: Extensor of the carpal joint and fingers

Question 25

flexor digitorum superficialis | Origin, Insertion Innervation, Function

Answer 25

O: Medial epicondyle of humerus I: Proximal on middle phalanx of each functional digit N: Ulnaris et Medianus (Ca) F: Flexor of carpal joint and fingers

Question 26

Flexor digitorum profundus | Origin, Insertion Innervation, Function

Answer 26

O: Caput Humerale - Medial epicondyle of humerus Caput radiale - Middle of caudal surface of radius Caput ulnare - Caudal aspect of olecranon on ulna I: Flexor durface of distal phalanx N: ulnaris et medianus F: Flexor of the carpal joint and fingers

Question 27

Flexor digitorum brevis | Origin, Insertion

Answer 27

O: Superficial digital flexor tendon I: trasnverse ligament of metacarpophalangeal joint of 5th digit

Question 28

Lumbricales | Origin, Insertion, Function

Answer 28

O: branches of deep digital flexor tendon I: proximal phalanx of 2nd-5th digit F: Short flexor muscles of the fingers

Question 29

Interossei | Origin, Insertion, Function

Answer 29

O: Proximal end of metacarpal bones I: proximal sesamoid bones F: Flexor muscle of the fingers