thenar muscles Flashcards
1
Q
pa: flexor pollics brevis, abductor pollicis brevis
opponens pollicis
A
flexor retinaculum
tubercules of scaphoid and trapezium
*all three of thenar musclces have the SAME proximal attachment
2
Q
da: flexor pollicis brevis and abductor pollicis brevis
A
base of proximal phalanx of thumb
3
Q
da: opponens pollicis
A
1st metacarpal
3
Q
nerve: flexor pollicis brevis
A
superficial head: median nerve (recurrent branch) C8, T1
deep head: ulnar nerve (deep branch) C8, T1
4
Q
nerve: abductor pollicis brevis and opponens pollicis
A
median nerve (recurrent branch) C8, T1
5
Q
ma: flexor pollicis brevis
A
thumb flexion @CMC and MCP
assists with thumb opposition
6
Q
ma: abductor pollicis brevis
A
thumb ABduction @CMC and MCP joints
assists with thumb opposition
7
Q
ma: opponens pollicis
A
thumb opposition
