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Function. When pronator quadratus contracts, it pulls the lateral side of the radius towards the ulna, thus pronating the hand. Its deep fibers serve to keep the two bones in the forearm bound together. Moreover, this muscle can be absent in some humans, however, that does not affect the action of pronation very notably, as the pronator teres ...
The anterior interosseous nerve is a branch of the median nerve, with a large sensory branch to the wrist bones, which arises just below the elbow. It passes distally, anteriorly along the interosseous membrane and innervates flexor pollicis longus, flexor digitorum profundus to index and middle finger as well as pronator quadratus, and supplies sensory feedback from the wrist bones, i.e. the ...
FDP is shown in blue. The flexor digitorum profundus or flexor digitorum communis profundus[1] is a muscle in the forearm of humans that flexes the fingers (also known as digits). It is considered an extrinsic hand muscle because it acts on the hand while its muscle belly is located in the forearm. Together the flexor pollicis longus, pronator ...
38485. Anatomical terms of muscle. [edit on Wikidata] The brachioradialis is a muscle of the forearm that flexes the forearm at the elbow. [1][2] It is also capable of both pronation and supination, depending on the position of the forearm. [2] It is attached to the distal styloid process of the radius by way of the brachioradialis tendon, and ...
Pronator teres syndrome is a compression neuropathy of the median nerve at the elbow. It is rare compared to compression at the wrist ( carpal tunnel syndrome ) or isolated injury of the anterior interosseous branch of the median nerve ( anterior interosseous syndrome ).
The anterior compartment of the forearm (or flexor compartment) [1] contains the following muscles: [2] The muscles are largely involved with flexion and supination. [2] The superficial muscles have their origin on the common flexor tendon. [2] The ulnar nerve and artery are also contained within this compartment. [2]
It arises from the grooved anterior (side of palm) surface of the body of the radius, [3] extending from immediately below the radial tuberosity and oblique line to within a short distance of the pronator quadratus muscle. [4] An occasionally present accessory long head of the flexor pollicis longus muscle is called 'Gantzer's muscle'. [5]
Cross-section through the middle of the forearm. (Muscles of mobile wad visible at center left.) The mobile wad (or mobile wad of Henry) is a group of the following three muscles found in the lateral compartment of the forearm: [1] It is also sometimes known as the "wad of three", [2] "lateral compartment", [3] or "radial group" [4] of the forearm.