Where does the median nerve supply?

anterior forearm
The median nerve innervates many muscles of the anterior forearm and hand, providing signals to and from the brain and spinal cord. The flexor digitorum superficialis and pronator quadratus are among the muscles of the anterior forearm that are solely innervated by the median nerve.

What areas of the hand does the median nerve control?

The median nerve also provides sensory innervation to the dorsal aspect (nail bed) of the distal first two digits of the hand, the volar aspect of the thumb, index, middle, and half of the ring finger, the palm, as well as the medial aspect of the forearm.

Where is the median nerve located in the wrist?

The Median Nerve extends along the middle of the arm and forearm to the hand. It arises by two roots, one from the lateral and one from the medial cord of the brachial plexus; these embrace the lower part of the axillary artery, uniting either in front of or lateral to that vessel.

What is the most common site of median nerve impaction?

The median nerve can be entrapped at four locations around the elbow: distal hu- merus by the ligament of Struthers; proximal elbow by a thickened biceps aponeurosis; el- bow joint between the superficial and deep heads of the pronator teres muscle, which is the most common cause of median nerve compression; and …

What is the main function of the median nerve?

The median nerve has two critical functions. The first is to provide information about sensations from a specific location in the hand back to the brain. The second major function is to provide information from the brain to be delivered to muscles of the forearm and hand telling them to contract.

What is the pathway of the median nerve?

The median nerve pathway continues down the arm, passing through a seam of fascia between the biceps and triceps muscles on the inside of the upper arm. It then travels through the elbow area, and down the inside of the forearm into the wrist and hand.

What is the median nerve problem?

When the median nerve is compressed, the symptoms can include numbness, tingling and weakness in the hand and arm . The anatomy of your wrist, health problems and possibly repetitive hand motions can contribute to carpal tunnel syndrome . Proper treatment usually relieves the tingling and numbness and restores wrist and hand function.

What is the course of the median nerve?

Course of the Median Nerve. Median nerve continues down the arm with brachial artery, when it initially lies lateral to the artery, and later crosses over to lie medial to it around halfway down the arm. Next, it passes within medial part of the antecubital fossa within the two heads of the pronator teres muscle .