Illustrated Encyclopedia of Human Anatomic Variation: Opus II: Cardiovascular System

Dominant Ulnar Arteries in Arterial Palmar Arches with a Radial Artery with Three Roots, or a Rudimentary Radial Artery, Median Artery Variant, and Variant Superior and Inferior Branches of the Anterior Interosseous Artery.

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed

A (left side of illustration)
A= axillary artery, B= brachial artery, J= anterior interrosseous artery, M= median (antibrachial, deep) artery, R= three roots of the radial artery, re= superior root of the radial artery from the axillary artery, rm= middle root of the radial artery from the median artery, and ri= inferior root of the radial artery from the anterior interosseous artery, U= ulnar artery, a= carpal volar (palmer) artery ,13= superficial artery, y= dorsal radial branch of thumb, b= volar (palmer) radial branch of thumb. a,p,y, and ~ form the lower root and its continuations.

B (right side of illustration)
a= brachial artery, b= rudimentary radial artery, c= median (antibrachial, deep) artery, d= common anterior interosseous artery, e= ulnar artery, f= anterior interosseous artery, a= radial recurrent artery ,8= ulnar recurrent artery, ~y= variant median artery, 6= variant superior branch of anterior interosseous artery, s= variant inferior branch of anterior interosseous artery. y, 6, and ~ replace the missing part of the rudimentary radial artery.

from Gruber, W. Dreiwurzelige Arteria radialis, 1870.

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