radial nerve

noun

Medical Definition of radial nerve

: a large nerve that arises from the posterior cord of the brachial plexus and passes spirally down the humerus to the front of the lateral epicondyle where it divides into a superficial branch distributed to the skin of the back of the hand and arm and a deep branch to the underlying extensor muscles

— called also musculospiral nerve, nervus radialis

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radial nerve

radial notch

Cite this Entry

“Radial nerve.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/radial%20nerve. Accessed 22 Jan. 2022.

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