Hypothenar muscles of hand

Question 1

What are the hypothenar muscles of the hand?

Answer 1

Abductor digiti minimi
Flexor digiti minimi brevis
Opponens digiti

Question 2

What is the proximal attachment of the abdutor digiti minimi?

Answer 2

Pisiform

Question 3

What is the distal attachment of the abdutor digiti minimi?

Answer 3

Medial side of base of proximal phalanx of 5th digit

Question 4

What is the innervation of the abdutor digiti minimi?

Answer 4

Deep branch of ulnar nerve (C8, T1)

Question 5

What is the main action of the abdutor digiti minimi?

Answer 5

Abducts 5th digit; assists in flexion of its proximal phalanx

Question 6

What is the proximal attachment of the flexor digiti minimi brevis?

Answer 6

Hook of hamate and flexor retinaculum

Question 7

What is the distal attachment of the flexor digiti minimi brevis?

Answer 7

Medial side of base of proximal phalanx of 5th digit

Question 8

What is the innervation of the flexor digiti minimi brevis?

Answer 8

Deep branch of ulnar nerve (C8, T1)

Question 9

What is the main action of the flexor digiti minimi brevis?

Answer 9

Flexes proximal phalanx of 5th digit

Question 10

What is the proximal attachment of the opponens digiti?

Answer 10

Hook of hamate and flexor retinaculum

Question 11

What is the distal attachment of the opponens digiti?

Answer 11

Medial border of the 5th metacarpal

Question 12

What is the innervation of the opponens digiti?

Answer 12

Deep branch of ulnar nerve (C8, T1)

Question 13

What is the main action of the opponens digiti?

Answer 13

Draws 5th metacarpal anterior and rotates it, bringing 5th digit into opposition with thumb