Posterior Forearm - Exam 4

Question 1

superficial posterior forearm muscles

Answer 1

brachioradialis
extensor carpi radialus longus
extensor carpi radialus brevis
extensor digitorum
extensor digiti minimi
extensor carpi ulnaris

Question 2

deep posterior forearm muscles

Answer 2

supinator
abductor pollicus brevis
extensor pollicus brevis
extensor pollicus longus
extensor indicis

Question 3

brachioradialis origin

Answer 3

humerus lateral supracondylar ridge

Question 4

brachioradialis insertion

Answer 4

radius styloid process

Question 5

brachioradialis innervation

Answer 5

radial nerve

Question 6

brachioradialis action

Answer 6

forearm flexion when prone

Question 7

extensor carpi radialis longus origin

Answer 7

humerus lateral epicondyle (common extensor tendon)

Question 8

extensor carpi radialis longus insertion

Answer 8

base of 2nd MC

Question 9

extensor carpi radialis longus innervation

Answer 9

radial nerve

Question 10

extensor carpi radialis longus actions

Answer 10

extends wrist joint
abducts wrist joint

Question 11

extensor carpi radialis brevis origin

Answer 11

humerus lateral epicondyle (common extensor tendon)

Question 12

extensor carpi radialis brevis insertion

Answer 12

base of 3rd MC

Question 13

extensor carpi radialis brevis innervation

Answer 13

radial nerve

Question 14

extensor carpi radialis brevis actions

Answer 14

extends wrist
abducts wrist joint

Question 15

extensor digitorum origin

Answer 15

humerus lateral epicondyle (common extensor tendon)

Question 16

extensor digitorum insertion

Answer 16

fascia around digits 2-5

Question 17

extensor digitorum innervation

Answer 17

radial nerve

Question 18

extensor digitorum action

Answer 18

extends digits 2-5

Question 19

extensor digiti minimi origin

Answer 19

humerus lateral epicondyle (common extensor tendon)

Question 20

extensor digiti minimi insertion

Answer 20

distal phalanx of 5th digit

Question 21

extensor digiti minimi innervation

Answer 21

radial nerve

Question 22

extensor digiti minimi action

Answer 22

extends 5th digit

Question 23

extensor carpi ulnaris origin

Answer 23

humerus lateral epicondyle (common extensor tendon)

Question 24

extensor carpi ulnaris insertion

Answer 24

dorsal base of 5th MC

Question 25

extensor carpi ulnaris innervation

Answer 25

radial nerve

Question 26

extensor carpi ulnaris actions

Answer 26

extends wrist joint adducts wrist joint

Question 27

supinator origin

Answer 27

humerus lateral epicondyle ulna supin crest

Question 28

supinator insertion

Answer 28

radius

Question 29

supinator innervation

Answer 29

radial nerve

Question 30

supinator action

Answer 30

supinates forearm

Question 31

abductor pollicus longus origin

Answer 31

posterior radius IM posterior ulna

Question 32

abductor pollicus longus insertion

Answer 32

base of 1st MC

Question 33

abductor pollicus longus innervation

Answer 33

radial nerve

Question 34

abductor pollicus longus action

Answer 34

abduction of pollex

Question 35

extensor pollicus brevis origin

Answer 35

posterior radius IM

Question 36

extensor pollicus brevis insertion

Answer 36

proximal phalanx of pollex

Question 37

extensor pollicus brevis innervation

Answer 37

radial nerve

Question 38

extensor pollicus brevis action

Answer 38

extends pollex

Question 39

extensor pollicus longus origin

Answer 39

posterior ulna IM

Question 40

extensor pollicus longus insertion

Answer 40

distal phalanx of pollex

Question 41

extensor pollicus longus innervation

Answer 41

radial nerve

Question 42

extensor pollicus longus action

Answer 42

extends pollex

Question 43

extensor indicis origin

Answer 43

posterior ulna IM

Question 44

extensor indicis insertion

Answer 44

phalanges of 2nd digit

Question 45

extensor indicis innervation

Answer 45

radial nerve

Question 46

extensor indicis action

Answer 46

extends 2nd digit