Common Digital Arteries in Second, Third and Fourth Webs and Vein Anatomy
- The palmar digital arteries of the fingers originate from the bifurcation of the common digital arteries.
Diagrams & Photos
-
The common digital arteries originating from the superficial palmar arch. Distally the common digital arteries divide into the radial and ulnar proper digital arteries. The index radial digital is an exception. It originates directly from the radial artery or in some cases from the princeps pollicis artery.
Key Points
Arteries:
- The radial digital artery of the index along with the princeps pollicis are both terminal branches of dorsal part of the radial artery.
Veins:
- The palmar digits are drained by a superficial and deep venous system.
- Digital vena comitantes have a variable presence in this venous drainage system.
- Palmar (volar) digital veins connected to dorsal veins by oblique intercapitular or communicating veins thar drain into veins of the dorsal finger, hand, and wrist.