Muscles of Hand (Origin) Flashcards
1
Q
Abductor pollicis brevis
A
from the tubercle of the scaphoid and trapezium and adjacent flexor retinaculum
2
Q
Flexor pollicis brevis
A
superficial head (large) and deep head (small) : from the tubercle of the scaphoid and trapezium and adjacent flexor retinaculum.
3
Q
Opponens pollicis
A
from the tubercle of
the scaphoid and trapezium
and adjacent flexor
retinaculum.
4
Q
Adductor pollicis
A
oblique head: bases of 2nd and 3rd metacarpals, capitate, and adjacent carpals.
trasverse head: anterior surface of shaft of 3rd metacarpal
5
Q
Abductor digiti minimi
A
pisiform
6
Q
Flexor digiti minimi brevis
A
hook of hamate and flexor retinaculum
7
Q
Opponens digiti
A
hook of hamate and flexor retinaculum
8
Q
Palmaris brevis muscle
A
flexor retinaculum and palmar aponeurosis
9
Q
Lumbricals
A
the medial two lumbricals are bipennate and originate from the flexor digitorum profundus tendons associated with the middle and ring fingers and the ring and little fingers, respectively; • the lateral two lumbricals are unipennate muscles, originating from the flexor digitorum profundus tendons associated with index and middle fingers, respectively
10
Q
Palmar interossei
A
- Each arises by 1 head from 1 metacarpal bone
1st, 2nd, 4th, & 5th MC
11
Q
Dorsal interossei
A
- Each arises by 2 heads from adjacent 2 metacarpal bones.
