Approximately 5 cm distal to axillary crease the profunda brachii artery branches off the brachial artery and coils around the humerus in the radial groove joined by the radial nerve
At this level the MC nerve has deviated laterally in the fascial plane between the short head of the biceps brachii muscle and the coracobrachial muscle
The MC nerve can be anaesthetized at this level
Musculocutaneous nerve (cyan arrow), median nerve (red arrows), ulnar nerve (green arrows), radial nerve (magenta arrow), brachial artery and vein (A and V), short head of the biceps brachii muscle (white asterix), coracobrachial muscle (green asterix), profunda brachii artery (blue arrow)
