O/I/A/NS Final 3

Question 1

extensor carpi radialis (O/I)

Answer 1

O: lateral epicondyle of humerus
I: metacarpal tuberosity of MC 3

Question 2

ulnaris lateralis (O/I)

Answer 2

O: lateral epicondyle of humerus
I: accessory carpal bone C4 and MC 4

Question 3

common digital extensor (O/I)

Answer 3

O: lateral epicondyle of humerus, lateral tuberosity of radius, lateral surface of body of the ulna
I: extensory process of P3

Question 4

flexor carpi radialis (O/I)

Answer 4

O: medial epicondyle of humerus
I: MC 2

Question 5

superficial digital flexor (O/I)

Answer 5

O: medial epicondyle of humerus and caudal surface of radius
I: proximal part of P2 and distal part of P1

Question 6

deep digital flexor (O/I)

Answer 6

O: medial epicondyle of the humerus, olecranon, caudal surface of the radius
I: flexor surface of P3

Question 7

interosseus (suspensory ligament) (O/I)

Answer 7

O: palmar surface of MC 3 and distal row of carpal bones
I: abaxial surfaces of proximal sesmoids and tendon of common digital extensor m.

Question 8

extensor carpi radialis (A/NS)

Answer 8

A: extend the carpus and flex the elbow
NS: radial n.

Question 9

ulnaris lateralis (A/NS)

Answer 9

A: flex the carpus and extend the elbow
NS: radial n.

Question 10

common digital extensor (A/NS)

Answer 10

A: extend the digit and carpus and flex the elbow
NS: radial n.

Question 11

flexor carpi radialis (A/NS)

Answer 11

A: flex the carpus and extend the elbow
NS: median n.

Question 12

superficial digital flexor (A/NS)

Answer 12

A: flex the digit and carpus and extend the elbow
NS: ulnar n.

Question 13

deep digital flexor (A/NS)

Answer 13

A: flex the digit and carpus and extend the elbow
NS: median and ulnar n.

Question 14

interosseus (suspensory lig) (A/NS)

Answer 14

A: support the fetlock (prevent overextension)
NS: palmar metacarpal nn. (sensory only)