Forearm and Hand Part 3

Question 1

Abductor Pollicis Longus Action

Answer 1

Abduct the thumb
Extend the thumb
Abduct the wrist

Question 2

Abductor Pollicis Longus Origin

Answer 2

Posterior surface of the radius and ulna, and interosseous membrane

Question 3

Abductor Pollicis Longus Insertion

Answer 3

Base of the first metacarpal

Question 4

Extensor Pollicis Longus Action

Answer 4

Extend the thumb
Abduct the wrist
(maybe another thumb extension?)

Question 5

Extensor Pollicis Longus Origin: Longus and Brevis

Answer 5

Longus: Posterior surface of the ulna and interosseous membrane
Brevis: Posterior surface of radius and interosseous membrane

Question 6

Extensor Pollicis Longus Insertion: Longus and Brevis

Answer 6

Longus: Base of distal phalanx of thumb
Brevis: Base of proximal phalanx of thumb

Question 7

Flexor Pollicis Longus Action

Answer 7

Flex the thumb (second flex thumb)
Assist to flex the wrist

Question 8

Flexor Pollicis Longus Origin

Answer 8

Anterior surface of radius and interosseous membrane

Question 9

Flexor Pollicis Longus Intertion

Answer 9

Base of the distal phalanx of thumb

Question 10

Abductor Pollicis Brevis Action

Answer 10

Abduct the thumb
Assist in opposition of the thumb

Question 11

Flexor Pollicis Brevis Action

Answer 11

Flex the thumb
Assist in opposition of thumb

Question 12

Opponens Pollicis Action

Answer 12

Opposition of the thumb at the carpomeracarpal joint

Question 13

Adductor Pollicis Action

Answer 13

Adduct the thumb
Assist to flex the thumb

Question 14

Abductor Digiti Minimi Action

Answer 14

Abduct the fifth finger
Assist in opposition

Question 15

Flexor Digiti Minimi Brevis Action

Answer 15

Flex the fifth finger
Assist in opposition of the fifth finger towards the thumb

Question 16

Opponens Digiti Minimi Action

Answer 16

Opposition of the fifth finger at the carpomeacarpal joint