Intrinsic Muscles of the Hand - Hypothenar Compartment

Question 1

flexor digiti minimi

Answer 1

origin: medial carpal bones and flexor retinaculum
insertion: base of the proximal phalanx of digit 5
innervation: deep ulnar n.
action: flexion of digit 5

Question 2

abductor digiti minimi

Answer 2

origin: medial carpal bones and flexor retinaculum
insertion: base of the phalanx of digit 5
innervation: deep ulnar n.
action: abduction of digit 5

Question 3

opponens digiti minimi

Answer 3

origin: medial carpal bones and flexor retinaculum
insertion: metacarpal 5
innervation: deep ulnar n.
action: opposition of digit 5