Intrinsic Muscles of the Hand - Hypothenar Eminence

Question 1

Attachments of Flexor Digiti Minimi Brevis?

Answer 1

O: hook of hamate and flexor retinaculum

I: base of proximal phalanx of little finger

Question 2

Nerve supply of Flexor digiti minimi brevis?

Answer 2

Ulnar nerve T1

Question 3

Action of Flexor Digiti minimi brevis?

Answer 3

flexes the MCP joint of little finger

Question 4

DOF of Flexor Digiti minimi brevis

Answer 4

inferiorly

Question 5

Attachments of abductor digiti minimi

Answer 5

O: pisiform and pisometacarpal ligament

I: ulnar side of proximal phalanx of little finger and DDE

Question 6

Nerve supply of abductor digiti minimi

Answer 6

ulnar nerve T1

Question 7

Action of abductor digiti minimi

Answer 7

abducts little finger

Question 8

DOF of abductor digiti minimi

Answer 8

inferiorly

Question 9

Attachments of opponens digiti minimi

Answer 9

O: hook of hamate and flexor retinaculum

I: palmar surface of 5th metacarpal

Question 10

Nerve supply of opponens digiti minimi

Answer 10

Ulnar nerve T1

Question 11

Action of opponens digiti minimi

Answer 11

opposes little finger

Question 12

Attachments of palmaris brevis

Answer 12

O: medial border of palmar aponeurosis and flexor retinaculum

I: skin on medial side of hand

Question 13

Action of palmaris brevis

Answer 13

assists wrinkling of skin on ulnar side to increase grip

Question 14

Nerve supply of palmaris brevis

Answer 14

ulnar nerve T1

Question 15

what muscles make up the hypothenar eminence?

Answer 15

flexor digiti minimi brevis, abductor digiti minimi brevis, opponens digiti mini, palmares brevis