The Radial Nerve [Part 2] | From Elbow → Hand

The video tutorial explains the radial nerve's origin from the brachial plexus, its path through the arm, and its bifurcation into the deep and superficial branches. The deep branch is motor-focused, entering the supinator tunnel and becoming the posterior interosseous nerve, innervating extensor muscles. The superficial branch is sensory, running under the brachioradialis and providing sensory input from the hand's lateral dorsal side.

What happens to the deep branch of the radial nerve as it exits the supinator tunnel?

How does the superficial branch of the radial nerve differ from the deep branch?

What areas of the hand does the superficial branch of the radial nerve provide sensory information to?