Search results
Results from the WOW.Com Content Network
Function. Extensor digitorum brevis extends the first four digits at the metatarsophalangeal joint and assists in extending the second, third and fourth digits at the interphalangeal joint. The fifth digit, lacking any insertion from extensor digitorum brevis, can only be raised by the long extensor.
Extensor digitorum brevis manus is an extra or accessory muscle on the backside (dorsum) of the hand. It was first described by Albinus in 1758. [1] The muscles lies in the fourth extensor compartment of the wrist, and is relatively rare. [2] It has a prevalence of 4% in the general population according to a meta-analysis. [3]
The extensor digitorum muscle (also known as extensor digitorum communis) [ 2 ] is a muscle of the posterior forearm present in humans and other animals. It extends the medial four digits of the hand. Extensor digitorum is innervated by the posterior interosseous nerve, which is a branch of the radial nerve. [ 3 ]
Supernumerary tendons can refer to the additional tendons of normal structures or tendons of rare anatomical variants such as the extensor medii proprius or the extensor digitorum brevis manus. The increased pressure in the synovial sheath is known to directly or indirectly compress the posterior interosseous nerve of radial nerve . [ 14 ]
The common extensor tendon serves as the upper attachment (in part) for the superficial muscles that are located on the posterior aspect of the forearm: The tendon of extensor carpi radialis brevis is usually the most major tendon to which the other tendons merge. [2]
of phalanges, at all joints. Posterior compartment of the forearm. Extensor digitorum. Extensor digiti minimi (little finger only) Extensor indicis (index finger only) of phalanges, at interphalangeal joints [4] Lumbricals of the hand. Dorsal interossei of the hand. Palmar interossei.
Extensor carpi radialis brevis tendon. Extension of wrist Intersection syndrome: 3 Extensor pollicis longus tendon: Separated from the third compartment by Lister's tubercle. Forms ulnar (little finger side) border of the anatomical snuff box Extension of interphalangeal joint of thumb Drummer's wrist: 4 Extensor digitorum tendons. Extensor ...
Extensor digitorum longus muscle. The mucous sheaths of the tendons around the ankle. Lateral aspect. (Extensor dig. longus labeled at upper right.) The extensor digitorum longus is a pennate muscle, situated at the lateral part of the front of the leg.