Lower arm muscles Flashcards Preview

AA Exam 5 (Final) > Lower arm muscles > Flashcards

Flashcards in Lower arm muscles Deck (27):
1

Anterior compartment, flexors superficial group and nerves:

  • Pronator teres (median)
  • Flexor carpi radialis (median)
  • Palmaris longus (median)
  • Flexor carpi ulnaris (ulnar nerve)

2

Anterior compartment, flexors intermediate group and nerves:

Flexor digitorum superficialis (median nerve)

3

Anterior compartment, flexors deep group and nerves:

  • Flexor digitorum profundus (median and ulnar)
  • Flexor pollicis longus (median nerve)
  • Pronator quadratus (median nerve)

4

Pronator teres action? Nerve?

  • pronation
  • weak elbow flexion
  • median nerve

5

Flexor carpi radialis (carpal tunnel) action? Nerve?

  • wrist flexion
  • radial deviation
  • elbow flexion
  • median nerve

6

Palmaris longus action? Nerve?

  • wrist flexion
  • radial deviation
  • elbow flexion
  • median nerve

7

Flexor carpi ulnaris action? Nerve?

  • wrist flex
  • ulnar deviation
  • elbow flexion
  • ulnar nerve

8

Flexor digitorum superficialis action? Nerve?

  • flexion of middle and proximal phalanges
  • wrist and elbow flex
  • median nerve

9

Flexor digitorum profundus action? Nerve?

  • finger flexion
  • wrist flexion
  • median and ulnar nerves

10

Flexor pollicis longus action? Nerve?

  • thumb flexion
  • wrist flexion
  • median nerve

11

Pronator quadratus action? Nerve?

  • pronation
  • median nerve

12

Lateral “mobile wad” (radialis group)

  • Brachioradialis
  • ECRL
  • ECRB

13

Dorsal (posterior compartment) forearm (superficial and deep) and nerves:

  • Superficial
    • Extensor dititorum (radial nerve)
    • extensor digiti minimi (radial nerve)
    • Extensor carpi ulnaris (radial nerve)
  • Deep
    • Supinator (radial nerve)
    • abductor pollicis longus (radial nerve)
    • extensor pollicis brevis and longus (radial nerve)
    • extensor indicis (radial nerve)

14

Extensor digitorum action? Nerve?

  • extension of MCP joints
  • wrist extension
  • weak elbow extension
  • radial nerve

15

Extensor digiti minimi action? Nerve?

  • extension and abduction of 5th finger
  • wrist extension
  • weak elbow extension
  • radial nerve

16

Extensor carpi ulnaris action? Nerve?

  • extension of wrist
  • ulnar deviation
  • weak elbow extension
  • radial nerve

17

Supinator action? Nerve?

  • supination
  • elbow extension
  • radial nerve

18

Abductor pollicis longus action? Nerve?

  • extends 1st metacarpal
  • wrist radial deviation
  • radial nerve

19

Extensor pollicis brevis action? Nerve?

  • extension of proximal phalanx of thumb
  • radial deviation
  • radial nerve

20

Extensor pollicis longus action? Nerve?

  • extends distal phalanx of thumb
  • extends first metacarpal
  • wrist extension
  • radial deviation
  • radial nerve

21

Extensor indicis action? Nerve?

  • extends index finger and wrist
  • radial nerve

22

Extensor carpi radialis longus action?

Extensor carpi radialis brevis action?

  • wrist extension and radial deviation
  • elbow flexion

23

Brachioradialis action?

  • elbow flexion
  • half pronation from supination and vice versa

24

Tendons in the anatomical snuffbox:

  • abductor policis longus
  • extensor policis brevis
  • extensor pollicis longus

25

Lumbricals action?

flex digits at MCP and extend at IP

26

Palmar interossei action? Nerve?

Dorsal interossei action? Nerve?

  • Palmar interossei:
    • Adduct fingers (toward) middle finger at MCP joints (PAD)
    • assist lumbricals deep
    • ulnar nerve
  • Dorsal interossei:
    • Abduct fingers (away) from middle finger at MCP joints (DAB)
    • assist lumbricals deep
    • ulnar nerve

27

  • Nerve?
    • Abductor digiti minimi
    • Flexor digiti minimi brevis
    • Opponens ditigi minimi

ulnar nerve