Princeps pollicis artery

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Princeps pollicis artery
Palm of left hand, showing position of skin creases and bones, and surface markings for the volar arches.
Source Dorsal carpal branch of radial artery
Supplies Thumb
Latin Arteria princeps pollicis
TA A12.2.09.036
FMA 22762
Anatomical terminology

The princeps pollicis artery, or principal artery of the thumb, arises from the radial artery just as it turns medially towards the deep part of the hand; it descends between the first dorsal interosseous muscle and the oblique head of the adductor pollicis, along the medial side of the first metacarpal bone to the base of the proximal phalanx, where it lies beneath the tendon of the flexor pollicis longus muscle and divides into two branches.

These make their appearance between the medial and lateral insertions of the adductor pollicis, and run along the sides of the thumb, forming an arch on the palmar surface of the distal phalanx, from which branches are distributed to the integument and subcutaneous tissue of the thumb.

Additional images[edit]


This article incorporates text in the public domain from page 595 of the 20th edition of Gray's Anatomy (1918)

External links[edit]

  • Atlas image: hand_blood2 at the University of Michigan Health System ("Palm of the hand, deep dissection, anterior view")
  • Atlas image: hand_blood3 at the University of Michigan Health System ("Dorsum of the hand, deep dissection, posterior view")