compartments of palm

Introduction

Hypothenar fascia & compartments:

• Hypothenar muscles:
  • abductor digiti minimi
  • flexor digiti minimi
  • opponens digiti minimi

• Thenar fascia & thenar compartment:
  • attached to the palmar aspect of the 1st metacarpal.

• Thenar muscles: chiefly responsible for opposition of the thumb.
  • abductor pollicis brevis
  • flexor pollicis brevis
  • opponens pollicis

• Central compartment:
  • covered by the palmar aponeurosis.
  • midpalmar space covers the central comapartment
  • the muscles act on all the phalanges except the thumb.

• Short muscles:
  • Lumbricals
  • Dorsal & the palmar interosseous

• Adductor comparment:
  • deepest muscular plane, contains the adductor pollicis muscle.

More general terms

• anatomic structure

Component of

• hand