Posterior interosseous artery
Encyclopedia
The posterior interosseous artery (dorsal interosseous artery) is an artery
of the forearm
.
It passes backward between the oblique cord
and the upper border of the interosseous membrane
. It appears between the contiguous borders of the supinator and the abductor pollicis longus, and runs down the back of the forearm between the superficial and deep layers of muscles, to both of which it distributes branches.
Where it lies upon the abductor pollicis longus and the extensor pollicis brevis, it is accompanied by the dorsal interosseous nerve. At the lower part of the forearm it anastomoses with the termination of the volar interosseous artery
, and with the dorsal carpal network.
It gives off, near its origin, the interosseous recurrent artery
, which ascends to the interval between the lateral epicondyle and olecranon, on or through the fibers of the Supinator, but beneath the anconeus, and anastomoses with the radial collateral branch of the profunda brachii
, the posterior ulnar recurrent and the inferior ulnar collateral.
Artery
Arteries are blood vessels that carry blood away from the heart. This blood is normally oxygenated, exceptions made for the pulmonary and umbilical arteries....
of the forearm
Forearm
-See also:*Forearm flexors*Forearm muscles...
.
It passes backward between the oblique cord
Oblique cord
The oblique cord is a ligament between the two ulnar and radius bones in the lower arm near its elbow. It takes the form of a small, flattened band, extending downward and lateralward, from the lateral side of the ulnar tuberosity at the base of the coronoid process to the radius a little below the...
and the upper border of the interosseous membrane
Interosseous membrane
An interosseous membrane is a broad and thin plane of fibrous tissue that separates many of the bones of the body. It is an important component of many joints.Interosseous membranes in the human body:* Interosseous membrane of the forearm...
. It appears between the contiguous borders of the supinator and the abductor pollicis longus, and runs down the back of the forearm between the superficial and deep layers of muscles, to both of which it distributes branches.
Where it lies upon the abductor pollicis longus and the extensor pollicis brevis, it is accompanied by the dorsal interosseous nerve. At the lower part of the forearm it anastomoses with the termination of the volar interosseous artery
Volar interosseous artery
The anterior interosseous artery is an artery of the forearm.-Course:It passes down the forearm on the volar surface of the interosseous membrane....
, and with the dorsal carpal network.
It gives off, near its origin, the interosseous recurrent artery
Interosseous recurrent artery
The interosseous recurrent artery is an artery of the forearm which arises from the posterior interosseous artery near its origin. It ascends to the interval between the lateral epicondyle and olecranon, on or through the fibers of the supinator but beneath the anconeus. It anastomoses with the...
, which ascends to the interval between the lateral epicondyle and olecranon, on or through the fibers of the Supinator, but beneath the anconeus, and anastomoses with the radial collateral branch of the profunda brachii
Profunda brachii
The arteria profunda brachii is a large vessel which arises from the lateral and posterior part of the brachial artery, just below the lower border of the Teres major.-Course:...
, the posterior ulnar recurrent and the inferior ulnar collateral.