Anatomical Snuffbox Flashcards
1
Q
Anatomical location
A
A triangular depression found on the lateral dorsum of the hand
Best seen when thumb is abducted
2
Q
Ulnar (medial) border
A
Extensor pollicis longus tendon
3
Q
Radial (lateral) border
A
Extensor pollicis brevis tendon
Abductor pollicis longus tendon
4
Q
Proximal border
A
Styloid process of radius
5
Q
Floor
A
Carpal bones - scaphoid and trapezium
6
Q
Roof
A
Skin
7
Q
Contents
A
Radial artery - crosses floor
Branch of radial nerve
Cephalic vein
8
Q
Scaphoid fracture
A
Fall on an outstretched hand
Pain in anatomical snuffbox usually = scaphoid fracture
Blood runs distal to proximal
Fracture can disrupt blood to proximal portion resulting in avascular necrosis and future arthritis
