Male Metacarpus, Posterior View

Description

Dorsal (posterior) anatomy of the male metacarpus is presented with the metacarpal bones I to V forming the skeletal scaffold between the distal carpal row proximally and the metacarpophalangeal joints distally. Extensor tendons traverse the dorsum of the hand from the distal forearm, lying superficial to the metacarpals and converging toward the extensor expansions over the digits, with the index and little finger tendons typically showing more independent slips. Intermetacarpal spaces separate the metacarpal shafts, and dorsal venous channels and cutaneous landmarks may be appreciated as superficial references. A posterior hand view matters because it clarifies how the extensor mechanism is organized before it fans out over the proximal phalanges, a point that is easy to miss when teaching only the palmar (palm) compartment. This is the orientation used when localizing extensor tendon lacerations over the metacarpals, assessing sagittal band disruption at the metacarpophalangeal joint (boxer’s knuckle), or planning approaches for metacarpal fracture fixation where dorsal soft tissue handling can determine postoperative tendon gliding. Small structures, big consequences. Use this artwork in gross anatomy and surface anatomy teaching modules focused on the hand, and in orthopedic or plastic surgery materials describing dorsal approaches to metacarpal shaft fractures, extensor tendon repair, and postoperative rehabilitation principles tied to tendon excursion over the metacarpal region. It also suits medical publishing layouts that need a clean posterior reference for labeling metacarpals and extensor tendons in male anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.