Median nerve

Nervus medianus

Formed from the lateral and medial cords of the brachial plexus (C5-T1). It descends through the arm without giving branches, passes through the cubital fossa, runs between the flexor digitorum superficialis and profundus in the forearm, and enters the hand through the carpal tunnel.

Type Nerve
Body System Nervous
Body Region Forearm
Parent Structure arm nerve
Latin Name Nervus medianus
FMA ID 14385

Function

Provides motor innervation to most flexors of the forearm and thenar muscles of the hand. Provides sensory innervation to the lateral palm and palmar surface of the lateral three and a half digits.

Clinical Significance

Carpal tunnel syndrome is compression of the median nerve at the wrist, causing numbness, tingling, and weakness. Anterior interosseous syndrome affects motor function. Pronator teres syndrome compresses the nerve proximally. The hand of benediction occurs with high median nerve lesions.

Frequently Asked Questions

What is the Median nerve?
Formed from the lateral and medial cords of the brachial plexus (C5-T1). It descends through the arm without giving branches, passes through the cubital fossa, runs between the flexor digitorum superficialis and profundus in the forearm, and enters the hand through the carpal tunnel.
What is the function of the Median nerve?
Provides motor innervation to most flexors of the forearm and thenar muscles of the hand. Provides sensory innervation to the lateral palm and palmar surface of the lateral three and a half digits.
What body system is the Median nerve part of?
The Median nerve is part of the Nervous.
What conditions affect the Median nerve?
Carpal tunnel syndrome is compression of the median nerve at the wrist, causing numbness, tingling, and weakness. Anterior interosseous syndrome affects motor function. Pronator teres syndrome compresses the nerve proximally. The hand of benediction occurs with high median nerve lesions.
Where is the Median nerve located?
The Median nerve is located in the Forearm region of the body.

Related Structures

accessory nucleus of optic tract nuclei accessorii tractus optici accessory pretectal nucleus APN aggregate regional part of brain set of nuclei of neuraxis alar plate midbrain amiculum of dentate nucleus amiculum nuclei dentati amiculum of inferior olive ami ampulla caudalis ansa peduncularis ansa peduncularis in thalamo

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