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.
12.
The muscle passes obliquely across the forearm, and ends in a flat tendon, which is inserted into a rough impression at the middle of the lateral surface of the body of the radius, just distal to the insertion of the supinator.
13.
It ascends between the branches of the radial nerve, lying on the supinator muscle and then between the brachioradialis muscle and the brachialis muscle, supplying these muscles and the elbow-joint, and anastomosing with the terminal part of the profunda brachii.
14.
The term " radial tunnel syndrome " is used for compression of the posterior interosseous nerve, a division of the radial nerve, at the lateral intermuscular septum of arm, while " supinator syndrome " is used for compression at the arcade of Frohse.
15.
In non-avian archosaurs, including crocodiles, the capitellum and the trochlea are no longer bordered by distinct ect-and entepicondyles respectively, and the distal humerus consists two gently expanded condyles, one lateral and one medial, separated by a shallow groove and a supinator process.
16.
On its upper part is an oblique ridge, which runs from the dorsal end of the radial notch, downward to the dorsal border; the triangular surface above this ridge receives the insertion of the Supinator, the abductor pollicis longus, the extensor pollicis longus, and the extensor indicis proprius.
17.
The interosseous crest ( " crista interossea; external or interosseous border " ) begins above by the union of two lines, which converge from the extremities of the radial notch and enclose between them a triangular space for the origin of part of the Supinator; it ends below at the head of the ulna.
18.
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 middle collateral branch of the profunda brachii, the posterior ulnar recurrent and the inferior ulnar collateral.
19.
The radial nerve divides into deep and sensory superficial branches just proximal to the supinator muscle an arrangement that can lead to entrapment and compression of the deep part, potentially resulting in selective paralysis of the muscles served by this nerve ( the extensor muscles and the abductor pollicis longus . ) Many possible causes are known for this nerve syndrome, known as supinator entrapment syndrome, including compression by various soft-tissued masses surrounding the nerve, and stress caused by repetitive supination and pronation.
20.
The radial nerve divides into deep and sensory superficial branches just proximal to the supinator muscle an arrangement that can lead to entrapment and compression of the deep part, potentially resulting in selective paralysis of the muscles served by this nerve ( the extensor muscles and the abductor pollicis longus . ) Many possible causes are known for this nerve syndrome, known as supinator entrapment syndrome, including compression by various soft-tissued masses surrounding the nerve, and stress caused by repetitive supination and pronation.
