distal muscles (TL)

Question 1

origin extensor carpi radialis

Answer 1

lateral supracondylar crest

Question 2

insertion extensor carpi radialis

Answer 2

metacarpal tuberosities of MC II and III

Question 3

action extensor carpi radialis

Answer 3

extend carpus

Question 4

origin common digital extensor

Answer 4

lateral epicondyle

Question 5

insertion common digital extensor

Answer 5

extensor processes of the digital phalanx of digits II-V

Question 6

action common digital extensor

Answer 6

extend the joints of the 4 principal digits (II-V)

Question 7

origin lateral digital extensor

Answer 7

lateral epicondyle

Question 8

insertion lateral digital extensor

Answer 8

extensor processes of distal phalanx of digits III-V

Question 9

action lateral digital extensor

Answer 9

extend the joints digits III-V

Question 10

origin ulnaris lateralis

Answer 10

lateral epicondyle

Question 11

insertion ulnaris lateralis

Answer 11

lateral aspect of the proximal end of MC V; accessory carpal bone

Question 12

action ulnaris lateralis

Answer 12

abduct carpus; flex carpus

Question 13

origin supinator

Answer 13

lateral epicondyle of the humerus

Question 14

insertion supinator

Answer 14

cranial aspect of proximal radius

Question 15

action supinator

Answer 15

supiation

Question 16

origin pronator teres

Answer 16

medial epicondyle of the humerus

Question 17

insertion pronator teres

Answer 17

medial border of the radius

Question 18

action pronator teres

Answer 18

pronation

Question 19

origin abductor pollicis longus

Answer 19

distal ulna and adjacent interosseus membrane

Question 20

insertion abductor pollicis longus

Answer 20

proximal end of metacarpal I

Question 21

action abductor pollicis longus

Answer 21

abduct digit I

Question 22

origin flexor carpi radialis

Answer 22

medial epicondyle of the humerus

Question 23

insertion flexor carpi radialis

Answer 23

palmar surface of proximal aspect of MC II-III

Question 24

action flexor carpi radialis

Answer 24

flex carpus

Question 25

origin superficial digital flexor

Answer 25

medial epicondyle of the humerus

Question 26

insertion superficial digital flexor

Answer 26

palmar surface of the proximal aspect of middle phalanges of digits II-V

Question 27

action superficial digital flexor

Answer 27

flex carpus; flex digits II-V

Question 28

origin flexor carpi ulnaris

Answer 28

medial epicondyle of the humerus

Question 29

insertion flexor carpi ulnaris

Answer 29

accessory carpal bone

Question 30

action flexor carpi ulnaris

Answer 30

flex carpus

Question 31

origin deep digital flexor

Answer 31

medial epicondyle of the humerus; ulna; radius

Question 32

insertion deep digital flexor

Answer 32

flexor tubercle (palmar surface of the base) of the distal phalanx of each digit

Question 33

action deep digital flexor

Answer 33

flex the carpus; flex digits

Question 34

action pronator quadratus

Answer 34

pronate the antebrachium

Question 35

head of the deep digital flexor

Answer 35

radial, humeral, and ulnar heads

Question 36

proximal sesamoid bone

Answer 36

paired, palmar side of the metacarpals proximal phalanges; embedded in tendons of interosseous muscle

Question 37

dorsal sesamoid bone

Answer 37

unpaired, dorsal side of metacarpal and proximal phalange joint, embedded in common digital extensor