Forearm and Hand Muscles - Hand Flashcards Preview

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Flashcards in Forearm and Hand Muscles - Hand Deck (59)
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1

Abductor Pollicis Brevis Origin

Flexor retinaculum and tubercles of the scaphoid and trapezium

2

Abductor Pollicis Brevis Insertion

Lateral side and base of proximal phalanx of the thumb

3

Abductor Pollicis Brevis Innervation

Recurrent branch of the median nerve

4

Abductor Pollicis Brevis Action

Abduction of the thumb, helps oppose it

5

Abductor Pollicis Brevis Root

C8, T1

6

Flexor Pollicis Brevis Origin

Flexor retinaculum and tubercles of the scaphoid and trapezium

7

Flexor Pollicis Brevis Insertion

Lateral side of the proximal phalanx of the thumb

8

Flexor Pollicis Brevis Innervation

Recurrent branch of the median nerve

9

Flexor Pollicis Brevis Action

Flexion of the thumb

10

Flexor Pollicis Brevis Root

C8, T1

11

Opponens Pollicis Origin

Flexor retinaculum and tubercles of the scaphoid and trapezium

12

Opponens Pollicis Insertion

Lateral side of the 1st metacarpal

13

Opponens Pollicis Innervation

Recurrent branch of the median nerve

14

Opponens Pollicis Action

To oppose thumb, it draws 1st metacarpal medially to center of palm and rotates it medially

15

Opponens Pollicis Root

C8, T1

16

Abductor Digiti Minimi Origin

Pisiform

17

Abductor Digiti Minimi Insertion

Medial side of the base of proximal phalanx of the 5th digit

18

Abductor Digiti Minimi Innervation

Deep branch of the ulnar nerve

19

Abductor Digiti Minimi Action

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

20

Abductor Digiti Minimi Root

C8, T1

21

Flexor Digiti Minimi Origin

Hook of hamate and flexor retinaculum

22

Flexor Digiti Minimi Insertion

Medial side of the base of proxmial phalanc of the 5th digit

23

Flexor Digiti Minimi Innervation

Deep branch of the ulnar nerve

24

Flexor Digiti Minimi Action

Flexes proximal phalanx of 5th digit

25

Flexor Digiti Minimi Root

C8, T1

26

Opponens Digiti Origin

Hook of hamate and flexor retinaculum

27

Opponens Digiti Insertion

Medial border of the 5th metacarpal

28

Opponens Digiti Innervation

Deep branch of the ulnar nerve

29

Opponens Digiti Action

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

30

Opponens Digiti Root

C8, T1