What is the Gantzer muscle? The Gantzer muscle is an accessory portion of the flexor pollicis longus muscle or the flexor digitorum profundus muscle located in the forearm and it is considered an anatomical variation,
What is the Gantzer muscle?
The Gantzer muscle is an accessory portion of the flexor pollicis longus muscle or the flexor digitorum profundus muscle located in the forearm and it is considered an anatomical variation, its percentage of occurrence varying greatly according to the authors of the works analyzed.
What is flexor pollicis longus?
The flexor pollicis longus (FPL) is a long muscle located at the deep layer with flexor digitorum profundus and pronator quadratus in the anterior compartment of the forearm. Though it is situated at the forearm, it is classified as part of the extrinsic muscles of the hand as it’s function is seen in thumb movement.
What muscle contributes to median nerve entrapment?
The median nerve can be entrapped at four locations around the elbow: distal humerus by the ligament of Struthers; proximal elbow by a thickened biceps aponeurosis; elbow joint between the superficial and deep heads of the pronator teres muscle, which is the most common cause of median nerve compression; and proximal …
What is anterior interosseous nerve?
Introduction. Anterior Interosseous Nerve (AIN) is a motor branch from the Median nerve and runs deep in the forearm along with the anterior interosseous artery. It innervates three muscles in the forearm; an isolated palsy of these muscles is known as AIN Syndrome.
What is pronator teres syndrome?
Pronator teres syndrome (PTS), first described by Henrik Seyffarth in 1951, is caused by a compression of the median nerve (MN) by the pronator teres (PT) muscle in the forearm. The PT muscle is named because of its action and shape; it is a rounded muscle that pronates.
What is the pin nerve?
The posterior interosseous nerve, also known as the dorsal interosseous nerve, is the continuation of the deep branch of the radial nerve after it penetrates the supinator muscle. It carries fibers from the C7 and C8 spinal nerves and supplies the majority of the muscles in the posterior compartment of the forearm.
How do you stretch the median nerve?
To stretch the median nerve, place open palm on wall with finger tips pointing away from trunk and parallel to the floor. Rotate trunk away from wall keeping the elbow straight and feel the stretch in arm and forearm. Return to the starting position and repeat on the other side.
How do you test for anterior interosseous nerve?
Anterior Interosseous Nerve Compressive Syndrome The pronator quadratus muscle can be tested by asking the patient to resist pronation of the forearm with the elbow in a fully flexed position in order to reduce activation of the pronator teres muscle.