Thumb Movers Flashcards Preview

Upper Limb (plus back and chest wall) > Thumb Movers > Flashcards

Flashcards in Thumb Movers Deck (6)
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1

Abductor Pollicis Longus

Origin

Insertion

Origin: 

  • Ulna
  • radius
  • IO membrane

Insertion:

  • Base of M1

2

Abductor Pollicis Longus

Action

Innervation

Action: 

  • Abduction
  • Thumb extension

Innervation:

  • Posterior IO n. (from radial n.)

3

Extensor Pollicis Longus

Origin

Insertion

Origin: 

  • Middle third of ulna
  •  IO membrane

Insertion:

  • Distal phalanx of thumb

4

Extensor Pollicis Longus

Action

Innervation

Action:

  • Thumb extension

 Innervation:

  • Posterior IO n. (from radial n.)

5

Extensor Pollicis Brevis

Origin

Insertion

Origin: 

  • Radius
  • IO membrane

Insertion:

  • Proximal phalanx of thumb

6

Extensor Pollicis Brevis

Action

Innervation

Action:

  • Thumb extension

 Innervation:

  • Posterior IO n. (from radial n.)