Arteries of the Hand

Description

Palmar anatomy is rendered in an x-ray style with the hand supinated, extending from the distal forearm through the carpus, metacarpus, and phalanges. Red arterial channels trace the radial and ulnar arteries across the wrist into the superficial and deep palmar arches, from which common palmar digital arteries and proper palmar digital arteries run distally along the fingers toward the terminal tufts. Semi-transparent blue osseous landmarks, including the carpal bones, metacarpals, and phalanges, provide positional reference as the arches span transversely across the palm, deep to the palmar aponeurosis and superficial to the metacarpals. Clean landmarks. Arterial anatomy of the hand is where collateral circulation stops being an abstraction and becomes a surgical decision point, because the superficial palmar arch (typically ulnar-dominant) and deep palmar arch (typically radial-dominant) determine whether perfusion remains adequate after injury or vessel harvest. This view supports preoperative teaching around the Allen test and the risks of radial artery cannulation, radial artery graft procurement, or traumatic lacerations near the thenar eminence and distal forearm. Digital ischemia is unforgiving, and the course of the proper palmar digital arteries explains why small transverse cuts at the level of the proximal phalanges can produce disproportionate bleeding. Hand surgery and orthopedic teaching files can pair this plate with compartmental dissections of the carpal tunnel to contrast flexor tendons and the median nerve against the palmar arch. Anatomy and physiology courses will find it useful for tracing arterial inflow from the carpal region into metacarpal and digital branches, while medical publishers can drop it into chapters on vascular access, crush injury, and fingertip reconstruction to orient readers quickly. Anatomical accuracy verified by SciePro's Medical Advisory Board.