Antebrachium and carpus

Question 1

What basc joints are in the antebrachium-carpal region?

Answer 1

Radio-carpal, intercarpal, carpo-metacarpal joints

Question 2

What are the major bones in the antebrachium?

Answer 2

Radius, ulna, and carpals

Question 3

What are the compartments in the antebrachium?

Answer 3

Caudal and craino-ventral

Question 4

What artery supplies the caudal compartment?

Answer 4

median a., ulnar a., and radial a.

Question 5

What nerve supplies the caudal compartment?

Answer 5

Median and ulnar n.

Question 6

What action is the caudal compartment responsible for?

Answer 6

Flexion of carpus and digits

Question 7

What artery supplies the craino-ventral compartment?

Answer 7

Superficial brachial a.

Question 8

What nerve supplies the craino-ventral compartment?

Answer 8

Radial n.

Question 9

What action is the craino-ventral compartment responsible for?

Answer 9

Extension of carpus and digits

Question 10

What are the two rows of carpals?

Answer 10

Proximal and distal

Question 11

What are the proximal carpals?

Answer 11

radial, intermediate, ulnar, and accessory

Question 12

What is the most mobile joint in the carpus of a carnivore?

Answer 12

antebrachiocarpal joint

Question 13

How does the carpal joint act in an ungulate?

Answer 13

As a hinge - some oblique movements

Question 14

Where does the median n. enter the forearm?

Answer 14

Medial collateral ligament of elbow joint

Question 15

What is different about the horse ulnar n.?

Answer 15

does not unit with median nerve in brachiumq

Question 16

When does the ulnar n. break off from the median n. in dogs?

Answer 16

olecranon

Question 17

What branches off the ulnar n. in the brachium?

Answer 17

cutaneous antebrachial n.

Question 18

What muscles do the musculocutaneous n. innervate?

Answer 18

none in the antebrachium or the carpus

Question 19

What does the musculocutaneous n. do in the antebrachium?

Answer 19

medial cutaneous antebrachial n. innervates medial aspect

Question 20

What does the cutaneous branch of the musculocutaneous muscle do?

Answer 20

continues past the carpus and to the metacarpophalangeal jt.

Question 21

What is the main blood supply in the antebrachium (4 arteries)?

Answer 21

common interosseous a., median a, ulnar a., and radial a.

Question 22

What branches off the median a.?

Answer 22

radial a. and deep antebrachial a.

Question 23

What is the positioning of the cephalic v. in the forelimb?

Answer 23

follows cranial border of the forearm, lies on the extensor carpi radialis

Question 24

What is the general origin of the craniolateral muscle group?

Answer 24

Lateral epicondyle

Question 25

What are the extensor muscles (name wise) of the craniolateral muscle group?

Answer 25

E. carpi radialis
E. digitorum communis
E. digitorum lateralis
E. digiti I

Question 26

What are the other muscles (not the extensors) of the craniolateral group?

Answer 26

Brachioradialis
Supinator
Ulnaris lateralis
Abductor digiti I longus

Question 27

What small muscle of the forearm is hard to find in dogs but is present in cats?

Answer 27

Brachioradialis