Hand and Wrist (Week 12) Flashcards
Components of distal radioulnar joint
- Head of ulna
- Ulnar notch of radius
- Triangular articular disc
Ligaments of wrist (Radiocapral) Joint
- Palmar radiocarpal
- Dorsal radiocarpal
- (Distal) Ulnar collateral
- (Distal) Radial collateral
Movements of Wrist Joint
- flexion-extension
- radial-ulnar deviation
Nerve that passes through carpal tunnel
Median
Areas of Hand
Thenar (Thumb)
Midpalmar
Hypothenar (5th digit)
Thenar Muscles
Abductor pollicis brevis Median nerve
Flexor pollicis brevis
Opponens pollicis
Midpalmar Muscles
Lumbricals 1-2
Lumbricals 3-4
Adductor pollicis
Palmar interossei
Dorsal interossei
Hypothenar Muscles
Opponens digiti
Flexor digiti minimi
Abductor digiti minimi
Thenar Muscles NS
Median nerve
Midpalmar Muscles NS
Median nerve
(Deep branch of) Ulnar nerve
Hypothenar Muscles NS
(Deep branch of) Ulnar nerve
Dorsal Interossei Action
Abduction
Palmar Interossei Action
Adduction
Ulnar Canal Location
Between pisiform and hook of hamate
Ulnar Canal Syndrome Symptom
Clawing of 4th and 5th digits (caused by hyperextension of MCPJs causing IPJs to go into flexion)
