Nerve lying in the spiral groove of humerus is:
Anatomy of radial nerve Formed by: Axons from Roots: C5 to T1 Brachial plexus Trunks: Superior, Medial and Inferior Cord: Posterior Axons pass through Spiral groove of humerus Fibrous arch attachment of triceps to humerus Lateral intermuscular septum below deltoid inseion Arcade of Frohse: Above supinator and below elbow Branches Above elbow - Above spiral groove (humerus)
Musculocutaneous nerve
Ulnar nerve
Radial nerve
Median nerve