extensor antebrachii m/lig/tendon

Question 1

extensor carpi radialis

Answer 1

O: lateral epicondyle
I: dorsal base of 2nd and 3rd metacarpal
A: extend carpal

Question 2

common digital extensor

Answer 2

O: lateral epicondyle
I: extensor process of distal phalanges
A: extend carpal and digital joints
extends all digits

Question 3

lateral digital extensor

Answer 3

O: lateral epicondyle
I: phalanges of lateral most digits
A: extend carpal and digital joints of lateral most digits
Extends lateral digits, #4 and #5

Question 4

ulnaris lateralis

Answer 4

O: lateral epicondyle
I: accessory carpal bone, lateral base of 5th metacarpal
A: awkwardly flex antebrachiocarpal joint, abduct manus
exception muscle

Question 5

supinator

Answer 5

O: lateral epicondyle
I: body of radius
A: supination of manus

Question 6

abductor digit I longus

Answer 6

O: body of ulna
I: base of 1st metacarpal bone
A: abduct the forst digit
more important in big cats because function on first digit

Question 7

extensor retinaculum

Answer 7

retains extensor tendons to fix them before the carpus

Question 8

extensor muscles are on

Answer 8

the later side of the antebrachium