Arterial supply to the hand
Updates to Article Attributes
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was changed:
Arterial supply to the hand can be divided into palmar and dorsal components.
Palmar arterial supply
Palmar arterial supply can be divided into superficial and deep components
Superficial component
Superficial palmar arch
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Continuationsuperficial branch of the ulnar artery -
Distaldistal to flexor retinaculum -
Superficialsuperficial to the deep surface of the palmar aponeurosis - in 2/3 of cases, the palmar arch is incomplete, and forms a hockey-stick shape
-
Archarch lies across the centre of the palm
Common Palmarpalmar digital arteries (3)
-
Branches ofbranches off the superficial palmar arch -
Runrun in the webs between fingers, splitting into two proper palmar digital arteries that supply adjacent fingers
Palmar digital artery
-
Branch ofbranch off the superficial palmar arch -
Runsruns on the ulnar side of the little finger
Proper palmar digital arteries
-
Branches ofbranches off thedigitalcommon palmar digital arteries -
Runsruns on either side of each finger
Superficial palmar branch
-
Continuation ofbranch off the the radial artery -
Superficialsuperficial to (or travels through) the thenar muscles - in 1/3 of cases, the superficial palmar branch joins the superficial palmar arch to form a true arcade
Deep component
Princeps pollicis artery
- branch off the radial artery
- travels along the metacarpal bone of the thumb
- divides into two palmar digital branches at the metacarpal head
Radial indices artery
- branch off the radial artery
- supplies radial aspect of the index finger
Deep palmar arch
- continuation of the radial artery that anastamoses with the deep branch of the ulnar artery. Often the arch is complete (unlike the superficial arch)
- originates between the oblique and transverse heads of adductor pollicis
- lies 1cm proximal to the superficial arch
Palmar metacarpal arteries (3)
- branches off the deep palmar arch
- at the metacarpal heads, they anastamose with the common palmar digital branches of the superficial arch
- they perforate the interosseous spaces to anastomose with the dorsal metacarpal arteries
Dorsal arterial supply
Posterior carpal arch
- anastomosis between the radial, ulnar, and anterior interosseous arteries
- lies dorsal to the wrist
Dorsal metacarpal arteries
- branches off the posterior carpal arch
- split at the webs to supply dorsal sides of the fingers
- they anastomose with the deep palmar arch via the palmar metacarpal arteries
-<p>Arterial supply to the hand</p><p>Superficial palmar arch</p><ul>-<li>Continuation of the ulnar artery</li>-<li>Distal to flexor retinaculum</li>-<li>Superficial to the deep surface of the palmar aponeurosis</li>- +<p><strong>Arterial supply to the hand</strong> can be divided into palmar and dorsal components.</p><h5>Palmar arterial supply</h5><p>Palmar arterial supply can be divided into superficial and deep components</p><h6>Superficial component</h6><p>Superficial palmar arch</p><ul>
- +<li>superficial branch of the ulnar artery</li>
- +<li>distal to flexor retinaculum</li>
- +<li>superficial to the deep surface of the palmar aponeurosis</li>
-<li>Arch lies across the centre of the palm</li>-</ul><p>Common Palmar digital arteries (3)</p><ul>-<li>Branches of the superficial palmar arch</li>-<li>Run in the webs between fingers</li>- +<li>arch lies across the centre of the palm</li>
- +</ul><p>Common palmar digital arteries (3)</p><ul>
- +<li>branches off the superficial palmar arch</li>
- +<li>run in the webs between fingers, splitting into two proper palmar digital arteries that supply adjacent fingers</li>
-<li>Branch of the superficial palmar arch</li>-<li>Runs on the ulnar side of the little finger</li>- +<li>branch off the superficial palmar arch</li>
- +<li>runs on the ulnar side of the little finger</li>
-<li>Branches of the digital arteries</li>-<li>Runs on either side of each finger</li>- +<li>branches off the common palmar digital arteries</li>
- +<li>runs on either side of each finger</li>
-<li>Continuation of the radial artery</li>-<li>Superficial to (or travels through) the thenar muscles</li>-</ul><p> </p>- +<li>branch off the the radial artery</li>
- +<li>superficial to (or travels through) the thenar muscles</li>
- +<li>in 1/3 of cases, the superficial palmar branch joins the superficial palmar arch to form a true arcade</li>
- +</ul><h6>Deep component</h6><p>Princeps pollicis artery</p><ul>
- +<li>branch off the radial artery</li>
- +<li>travels along the metacarpal bone of the thumb</li>
- +<li>divides into two palmar digital branches at the metacarpal head</li>
- +</ul><p>Radial indices artery</p><ul>
- +<li>branch off the radial artery</li>
- +<li>supplies radial aspect of the index finger</li>
- +</ul><p>Deep palmar arch</p><ul>
- +<li>continuation of the radial artery that anastamoses with the deep branch of the ulnar artery. Often the arch is complete (unlike the superficial arch)</li>
- +<li>originates between the oblique and transverse heads of adductor pollicis</li>
- +<li>lies 1cm proximal to the superficial arch</li>
- +</ul><p>Palmar metacarpal arteries (3)</p><ul>
- +<li>branches off the deep palmar arch</li>
- +<li>at the metacarpal heads, they anastamose with the common palmar digital branches of the superficial arch</li>
- +<li>they perforate the interosseous spaces to anastomose with the dorsal metacarpal arteries</li>
- +</ul><h5>Dorsal arterial supply</h5><p>Posterior carpal arch</p><ul>
- +<li>anastomosis between the radial, ulnar, and anterior interosseous arteries</li>
- +<li>lies dorsal to the wrist</li>
- +</ul><p>Dorsal metacarpal arteries</p><ul>
- +<li>branches off the posterior carpal arch</li>
- +<li>split at the webs to supply dorsal sides of the fingers</li>
- +<li>they anastomose with the deep palmar arch via the palmar metacarpal arteries</li>
- +</ul>
References changed:
- 1. McMINN. Lasts Anatomy Regional and Applied. CHURCHILL LIVINGSTONE. (2003) ISBN:B0084AQDG8. <a href="http://books.google.com/books?vid=ISBNB0084AQDG8">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/B0084AQDG8">Find it at Amazon</a><span class="ref_v3"></span>
Sections changed:
- Anatomy
Systems changed:
- Vascular
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