Dorsal interosseous artery

The dorsal interosseous artery (lat. a. interossea dorsalis) is the artery of the forearm.

1. The dorsal interosseous artery arises from the common interosseous artery and passes along the interosseous membrane of the forearm to the dorsum of the wrist joint. It nourishes the muscles of the back of the forearm and sends small branches to the wrist joint.

2. The first interosseous dorsal artery (a. interossea dorsalis prima) arises directly from the ulnar artery above the interosseous membrane. It passes through the membrane to the back of the forearm and anastomoses with the artery of the same name, which arises from the common interosseous artery.

In anatomy, the term "artery interosseous, dorsal" is used to refer to the various arteries that run at the back of the wrist. The most important of these arteries is the posterior dorsal interosseous artery, which is a branch of the ulnar artery and passes through the interosseous membrane at the back of the wrist. It has several branches, including the anterior dorsal interosseous artery, the dorsal membranous artery, and the dorsal radial artery, each of which has its own role in supplying the tissues and organs of the hand.

The anterior dorsal interosseous artery is a branch of the deep brachial artery and enters the interosseous space between the ulnar and radial processes of the wrist. At this point it divides into two branches - the muscular arteries of the wrist and elbow. The muscular arteries, in turn, supply the muscles of the thumb and index finger, as well as the muscles of the forearm and hand.

The ulnar dorsal fracture artery originates from the epicardium of the forearm and passes through the septum anterior to the root of the radius. Posterior to the septum, it passes through one or more lateral canals located between the elements of the collateral ligament of the wrist and the extensor tendons of the forearm. From

The interosseous artery is a connection between the posterior interosseous artery and the dorsal arteries of the foot. When united, it forms the dorsal interosseous artery, which follows the lateral border of the cuboid bone. This vessel is considered along with other smaller dorsal interosseous arteries that accompany the tibial nerve and supply the soft tissue formations of the dorsum of the foot, hindfoot and cuboid bone and then distribute blood to the periphery of the foot. Medially from the arterial branch to the tibialis muscle, the interosseous artery continues distally to the medial surface of the calcaneus, where it supplies the anterior part of the medial cuneiometatarsal bone and then up the medial side of the foot to its junction with the medial plantar artery and the main toes, passing through the plantar fascia and skin.

There is also the concept of a. interossea anteriores dorsales, located between the anterior interosseous artery (a branch of the common peroneal artery) and the posterior interosseous artery (from the neurovascular bundle).

A. interosseae laterales are located between the anterior and posterior branches of the medial limbs of the vessels, may accompany the nerve, and a. metatarsea pedis.