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Anatomy > Hand > Flashcards

Flashcards in Hand Deck (35):
1

Thenar eminence muscles

abductor pollicis brevis, oppennes pollicis, flexor pollicis brevis

2

Hypthenar muscles

abductor digiti minimi, flexor digiti minimi, oppennes digiti minimi

3

Deep palmar muscles

adductor pollicis, interossei, lumbricals

4

Abductor policis brevis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

5

Abductor policis brevis insertion

Lateral side of base of proximal phalanx of thumb

6

Abductor policis brevis innervation

Recurrent branch of median nerve (C8 and T1) (C8, T1)

7

Abductor policis brevis action

abducts thumb and helps to oppose it

8

Opponens Pollicis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

9

Opponens Pollicis insertion

Lateral side of 1st metacarpal

10

Opponens Pollicis action

Draws 1st metacarpal laterally to oppose thumb toward center of palm and rotates it medially

11

Opponens Pollicis innervation

Recurrent branch of median nerve (C8 and T1) (C8, T1)

12

Flexor Pollicis Brevis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

13

Flexor Pollicis Brevis insertion

Lateral side of base of proximal phalanx of thumb

14

Flexor Pollicis Brevis action

Flexes thumb

15

Flexor Pollicis Brevis innervation

Recurrent branch of median nerve (C8 and T1) (C8, T1)

16

Abductor Digiti Minimi origin

pisiform

17

Abductor Digiti Minimi insertion

Medial side of base of proximal phalanx of little finger

18

Abductor Digiti Minimi action

abducts little (5th) finger

19

Abductor Digiti Minimi innervation

Deep branch of ulnar nerve (C8 and T1) (C8, T1)

20

Flexor Digiti Minimi origin

Hook of hamate and flexor retinaculum

21

Flexor Digiti Minimi insertion

Medial side of base of proximal phalanx of little finger

22

Flexor Digiti Minimi action

Flexes proximal phalanx of little (5th) finger

23

Flexor Digiti Minimi innervation

Deep branch of ulnar nerve (C8 and T1) (C8, T1)

24

Opponens Digiti Minimi origin

Hook of hamate and flexor retinaculum

25

Opponens Digiti Minimi insertion

Medial border of 5th metacarpal

26

Opponens Digiti Minimi action

Draws 5th metacarpal anteriorly and rotates it, bringing little finger (5th digit) into opposition with thumb

27

Opponens Digiti Minimi innervation

Deep branch of ulnar nerve (C8 and T1) (C8, T1)

28

Adductor Pollicis origin

Oblique head: bases of 2nd and 3rd metacarpals, capitate, and adjacent carpals;

29

Adductor Pollicis insertion

Medial side of base of proximal phalanx of thumb

30

Adductor Pollicis action

Draws 1st metacarpal laterally to oppose thumb toward center of palm and rotates it medially

31

Adductor Pollicis innervation

Deep branch of ulnar nerve (C8 and T1) (C8, T1)

32

Interosseous Muscles, Palmar origin

Palmar 1 - 3: Palmar surfaces of 2nd, 4th and 5th metacarpals (unipennate muscles)

33

Interosseous Muscles, Palmar insertion

Palmar 1 - 3: Extensor expansions of digits and bases of proximal phalanges of digits 2, 4 and 5

34

Interosseous Muscles, Palmar actions

Palmar 1 - 3: Adduct digits toward axial line and assist lumbricals in flexing metacarpophalangeal joints and extending interphalangeal joints

35

Interosseous Muscles, Palmar innervation

Deep branch of ulnar nerve (C8 and T1) (C8, T1)