antebrachial extensors

Question 1

extensor carpi radialis longus and brevis: MA

Answer 1

extend the wrist
radial deviate the wrist

Question 2

extensor carpi radialis longus:PA

Answer 2

lateral supra epicondylar ridge of humerus

Question 3

extensor carpi radialis longus: DA

Answer 3

dorsal aspect of base of 2nd metacarpal

Question 4

extensor carpi radialis brevis: PA

Answer 4

common extensor tendon from lateral epicondyle of humerus

Question 5

extensor carpi radialis brevis: DA

Answer 5

dorsal aspect of base of 3rd metacarpal

Question 6

extensor carpi radialis longus and brevis: IN

Answer 6

radial nerve (C6, C7, and C8)

Question 7

extensor digitorum: MA

Answer 7

extends medial 4 digits

Question 8

extensor digitorum: PA

Answer 8

lateral epicondyle of the humerus

Question 9

extensor digitorum: DA

Answer 9

extensor expansions of medial four digits

Question 10

extensor digitorum: IN

Answer 10

radial nerve ( C7, C8)

Question 11

extensor digiti minimi: MA

Answer 11

extend the 5th digit

Question 12

extensor digiti minimi: PA

Answer 12

lateral epicondyle of humerus

Question 13

extensor digiti minimi: DA

Answer 13

extensor expansion of 5th digit

Question 14

extensor digiti minimi: IN

Answer 14

radial nerver (C7,C8)

Question 15

extensor carpi ulnaris: MA

Answer 15

extend wrist
ulnar deviate the wrist
active during first clenching

Question 16

extensor carpi ulnaris: PA `

Answer 16

common extensor tendon from lateral epicondyle of humerus

Question 17

extensor carpi ulnaris: DA

Answer 17

base of 5th metacarpal

Question 18

extensor carpi ulnaris: IN

Answer 18

radial nerver C7 and C8

Question 19

supinator: MA

Answer 19

supinates the forearm

Question 20

supinator: PA

Answer 20

lateral epicondyle of humerus
radial collateral and anular ligaments
superior fossa
crest of ulna

Question 21

supinator: DA

Answer 21

lateral, posterior , and anterior surfaces of proximal third of radius

Question 22

supinator: IN

Answer 22

radial nerver (C7 and C8)

Question 23

extensor indicis: MA

Answer 23

extend the 2nd digit
may assist to extend the wrist

Question 24

extensor indicis: PA

Answer 24

posterior surface of distal third of ulna and interosseous membrane

Question 25

extensor indicis: DA

Answer 25

extensor expansion of 2nd digit

Question 26

extensor indicis: IN

Answer 26

radial nerve C7 and C8

Question 27

abductor pollicis longus: MA

Answer 27

radially abduct the thumb
extend the thumb

Question 28

abductor pollicis longus: PA

Answer 28

postioer surface of proximal halves of ulna , radius and interosseous membrane

Question 29

abductor pollicis longus: DA

Answer 29

base of 1st metacarpal

Question 30

abductor pollicis longus:: IN

Answer 30

radial nerver (C7 and C8)

Question 31

extensor pollicis brevis and longus: MA

Answer 31

extend the thumb (IP joint) EPL only
extend the thumb (MCP and CMC joints)

Question 32

extensor pollicis brevis: PA

Answer 32

posterior surface of ulna and interosseous membrane

Question 33

extensor pollicis brevis: DA

Answer 33

base of proximal phalanx of thumb

Question 34

extensor pollicis longus: PA

Answer 34

posterior surface of ulna and interosseous membrane

Question 35

extensor pollicis longus: DA

Answer 35

base of distal phaalanx of thumb

Question 36

extensor pollicis brevis and longus: IN

Answer 36

radial nerve (C7 and C8)