course and landmark of the median nerve

1. COURSE AND LANDMARKS OF
MEDIAN NERVE
TEJAS D
ROLL NO 122

2. • The median nerve is a major peripheral
nerve of the upper limb.
• Nerve roots: C6 – T1.
• The median nerve is derived from
the medial and lateral cords of the brachial
plexus.

3. • After originating from the brachial plexus in
the axilla, the median nerve descends down
the arm, initially lateral to the brachial artery.
Halfway down the arm, the nerve crosses over
the brachial artery, and becomes situated
medially.
• The median nerve enters the anterior
compartment of the forearm through the
cubital fossa.

4. • In the forearm, the nerve travels between the
flexor digitorum profundus and flexor
digitorum superficialis muscles. The median
nerve gives rise to two major branches in the
forearm:
• Anterior interosseous nerve – Supplies the
deep muscles in the anterior forearm.
• Palmar cutaneous nerve – Innervates the skin
of the lateral palm.

5. • The median nerve enters the hand via the carpal
tunnel, where it terminates by dividing into two
branches:
• Recurrent branch – Innervates the thenar
muscles.
• Palmar digital branch – Innervates the palmar
surface and fingertips of the lateral three and half
digits. Also innervates the lateral two lumbrical
muscles.

7. LANDMARKS OF MEDIAN NERVE
• RUNS BETWEEN BICEPS AND BRACHIALIS ALONGSIDE
THE BRACHIAL ARTERY AND THE ULNAR NERVE.
• CUBITAL FOSSA
• DIVES BETWEEN THE TWO HEADS OF PRONATOR TERES
• ANTERIOR INTEROSSEOUS NERVE ENDS HERE SUPPLYING
LATERAL 2 AND HALF DEEP FLEXOR MUSCLES.
• PALMAR CUTANEOUS BRANCH OF THE MEDIAN NERVE
GOES UP AND OVER THE CARPAL TUNNEL
• MEDIAN NERVE THROUGH CARPAL TUNNEL

8. THANK YOU