Hand (own notes, raw anatomy)

Question 1

List the intrinsic muscles of the hand

Answer 1

• abductor pollicis brevis
• flexor pollicis brevis
• opponenns pollicis
• adductor pollicis
• abductor digiti minimi
• flexor digiti minimi brevis
• opponens digiti minimi
• dorsal interossei
• palmar interossei
• lumbricals

Question 2

Describe the thenar muscles

Answer 2

APB
- scaphoid, trapezium, retinaculum
- lateral proximal phalanx
- abduct

FPB
- trapezium? and retinaculum
- base of proximal phalanx
- flex

OP
- tubercle of trapezoid? and retinaculum, to lateral 1st MC
- opposition by medially rotating and flexing MC

Question 3

Describe the actions of palmar, dorsal and lumbricals

Answer 3

• palmars adduct
• dorsals abduct
• palmars, dorsals and interosseis flex MCP and extend IP

Question 4

Describe the hypothenar muscles

Answer 4

ADM
- hook and retinaculum
- to base of rpoximal phalanx

FDMB
- pisiform and FCU
- to base of proximal phalanx

ODM
- hook and retinaculum to medial aspect of 5th MC
- rotates towards palm to oppose