Anatomy of the posterior interosseous artery ; Overview, Origin, Course, Branches, Supply скачать в хорошем качестве

Anatomy of the posterior interosseous artery ; Overview, Origin, Course, Branches, Supply

The posterior interosseous artery is a significant blood vessel in the forearm. Here’s a detailed look at its anatomy: Origin Common Interosseous Artery: The posterior interosseous artery is a branch of the common interosseous artery, which itself originates from the ulnar artery in the proximal part of the forearm. Course Interosseous Membrane: After originating from the common interosseous artery, it passes backward between the radius and ulna. Forearm: It travels along the posterior aspect of the interosseous membrane, descending between the extensor muscles of the forearm. Anastomoses: Near the wrist, it anastomoses with the anterior interosseous artery and other small arteries, contributing to the vascular network around the wrist. Branches Recurrent Interosseous Artery: This branch ascends to participate in the arterial anastomosis around the elbow, particularly with the middle collateral artery. Muscular Branches: Supply the extensor muscles of the forearm. Perforating Branches: Pierce the interosseous membrane to supply deeper structures. Supplied Structures Muscles: Extensor muscles in the posterior compartment of the forearm, including the extensor digitorum, extensor pollicis longus, and others. Bone: Contributes to the blood supply of the radius and ulna. Clinical Relevance Blood Supply: Vital for the perfusion of the extensor muscles and structures in the posterior compartment of the forearm. Injury: Trauma or surgical procedures involving the forearm can compromise the posterior interosseous artery, affecting blood flow and potentially leading to ischemic conditions. #posteriorinterosseousartery