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2MB MSK Anatomy (My version) > Hand > Flashcards

Flashcards in Hand Deck (38)
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1

List the groups of intrinsic muscles of the hand

Thenar
Hypothenar
Lumbricals
Interossei
Palmaris brevis
Adductor pollicis

2

List the thenar muscles of the hand

Opponens pollicis
Abductor pollicis brevis
Flexor pollicis brevis

3

What is the origin + insertion of opponens pollicis?

Trapezium, flexor retinaculum
Lateral aspect of thumb

4

What is the nerve + arterial supply to opponens pollicis?

Median nerve
Superficial palmar arch

5

Which movements does opponens pollicis enable?

Thumb: flexion at CMJ (opposition)

6

What is the origin + insertion of abductor pollicis brevis?

Scaphoid, trapezium, flexor retinaculum
Proximal phalanx of thumb

7

What is the nerve + arterial supply to abductor pollicis brevis?

Median nerve
Superficial palmar arch

8

Which movements does abductor pollicis brevis enable?

Thumb: abduction, opposition, extension

9

What is the origin + insertion of flexor pollicis brevis?

Trapezium, flexor retinaculum
Proximal phalanx of thumb

10

What is the nerve + arterial supply to flexor pollicis brevis?

Median nerve
Superficial palmar arch

11

Which movements does flexor pollicis brevis enable?

Thumb: flexion

12

What is the main nerve supply to the thenar muscles?

Median nerve

13

List the hypothenar muscles of the hand

Opponens digiti minimi
Abductor digiti minimi
Flexor digiti minimi brevis

14

What is the origin + insertion of opponens digiti minimi?

Hamate
5th metacarpal

15

What is the nerve + arterial supply to opponens digiti minimi?

Ulnar nerve
Ulnar artery

16

Which movements does opponens digit minimi enable?

Little finger: rotation, opposition

17

What is the origin + insertion of abductor digiti minimi?

Pisiform
Proximal phalanx of 5th digit

18

What is the nerve + arterial supply to abductor digiti minimi?

Ulnar nerve
Ulnar artery

19

Which movements does abductor digiti minimi enable?

Little finger: abduction

20

What is the origin + insertion of flexor digiti minimi brevis?

Hamate
Proximal phalanx of 5th digit

21

What is the nerve + arterial supply to flexor digiti minimi brevis?

Ulnar nerve
Ulnar artery

22

Which movements does flexor digiti minimi enable?

Little finger: flexion

23

What is the main nerve supply to the hypothenar muscles?

Ulnar nerve

24

How many lumbrical muscles are in the hand?

4 (one for each finger)

25

What is the origin + insertion of the lumbricals?

Flexor digitorum profundus tendon
Extensor hood

26

What is the nerve supply to the lumbricals?

Median nerve (1-2)
UInar nerve (3-4)

27

Which movements do the lumbricals enable?

MCPJ: flexion
IPJ: extension

28

How many interossei muscles are in the hand?

7
(4 dorsal, 3 palmar)

29

What is the origin + insertion of the interossei?

Metacarpals
Proximal phalanges

30

What is the nerve supply to the interossei?

Ulnar nerve