What does posterior Interosseus artery supply?
The posterior interosseous artery supplies blood to the ulna, abductor pollicis longus, supinator, and extensor muscles of the forearm.
What is the function of the posterior interosseous nerve?
The posterior interosseous nerve provides sensory fibers to the dorsal aspect of the wrist capsule, arising in a separate fascicle sheath from the deep radial aspect in the fourth extensor compartment. The nerve does not provide cutaneous branches.
What nerve runs with posterior interosseous artery?
The posterior interosseous artery itself descends on the posterior surface of the interosseous membrane alongside the posterior interosseous nerve (from the radial nerve) between the supinator (superficially) and abductor pollicis longus (deeply) muscles, supplying both.
Where does the posterior Interosseus artery come from?
The posterior interosseous artery stems from the common interosseous artery just distal to the elbow. The initial part of the artery travels posteriorly and deeply, passing between the oblique cord and proximal border of the interosseous membrane of forearm.
What are the 3 key arteries running through the arm?
The radial artery is one branch of the brachial artery, a major blood vessel in the upper arm. At the elbow joint, the brachial artery branches into the radial artery and the ulnar artery. The radial and ulnar arteries run parallel to each other down the forearm into the hand.
What artery supplies the brain?
The brain receives blood from two sources: the internal carotid arteries, which arise at the point in the neck where the common carotid arteries bifurcate, and the vertebral arteries (Figure 1.20). The internal carotid arteries branch to form two major cerebral arteries, the anterior and middle cerebral arteries.
Is posterior interosseous nerve sensory or motor?
The posterior interosseous nerve (PIN) is purely motor except for sensory fibers from the muscles it innervates and joint structures. The nerve can be traumatized in proximal fractures of the radius and ulna, but the more common etiology is compression of the nerve as it passes through the supinator muscle.
What is the treatment for radial tunnel syndrome?
Common non-surgical methods include immobilization of the wrist with splinting or casting, anti-inflammatory medication, ultrasound massage, and physical therapy (1). Radial nerve block using a local anesthetic injection through the radial tunnel in may provide a partial or complete resolution of the symptoms.
What is the posterior interosseous artery?
It is a branch of the common interosseous artery, which is a branch of the ulnar artery . The posterior interosseous artery passes backward between the oblique cord and the upper border of the interosseous membrane.
What is posterior interosseous nerve syndrome?
Posterior interosseous nerve syndrome is a compressive neuropathy of the posterior interosseous nerve which innervates the extensor compartment of the forearm. It usually has an insidious onset, often presenting with weakness in finger and thumb extension.
How does the radial nerve become the posterior interosseous?
Normally the deep branch of the radial nerve dives into the posterior forearm through the heads of the supinator to emerge as the posterior interosseous nerve. Anatomical variants include the deep radial nerve passing through the Arcade of Frohse to become the posterior interosseous nerve.
How can interprofessional communication help with posterior interosseous nerve syndrome?
Enhancing Healthcare Team Outcomes Interprofessional communication can help in the treatment and rehab for posterior interosseous nerve syndrome.