MEDIAN NERVE ANATOMY - Origin, Course, Branches and Clinical anatomy 

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MEDIAN NERVE GROSS ANATOMY DETAILED LECTURE
Median nerve
Innervation
Motor
superficial volar forearm group
Pronator teres
Flexor carpi radialis
Palmaris longus
intermediate group
Flexor digitorum superficialis
deep group
Flexor digitorum profundus (lateral)
Flexor pollicis longus
Pronator quadratus
hand
1st and 2nd lumbricals
Opponens pollicis
Abductor pollicis brevis
Flexor pollicis brevis
Origin
Brachial plexus
C5-T1 roots
medial and lateral cords
Course
Anterior compartment of arm
anterior compartment (anteromedial to humerus)
runs with brachial artery (lateral in upper arm / medial at elbow)
no branches in the arm
Forearm
enters the forearm between the pronator teres and biceps tendon
travels between flexor digitorum superficialis (FDS) and flexor digitorum profundus (FDP)
then emerges between the FDS and flexor pollicis longus (FPL)
Hand
the nerve then enters the hand via the carpal tunnel, along with the tendons of the FDS, FDP and FPL
Terminal branches
anterior interosseous branch (AIN)
innervates the deep volar compartment of forearm except the ulnar half of the FDP
palmar cutaneous branch
supplies sensory innervation to lateral palm
recurrent branch (to thenar compartment)
digital cutaneous branches
supply the radial 3 1/2 digits (palmar)
can also supply the index, long, and ring fingers dorsally
#mediannerveanatomy #mediannerve #upperlimbnerves #upperlimbanatomy