Humerus
Left humerus. Posterior view. (Label, visible at center, is "Groove for radial nerve")
Details
Identifiers
Latin	sulcus nervi radialis
TA98	A02.4.04.014
TA2	1197
FMA	23417
Anatomical terms of bone [edit on Wikidata]

The radial groove (also known as the musculospiral groove, radial sulcus, or spiral groove) is a broad but shallow oblique depression for the radial nerve and deep brachial artery. It is located on the center of the lateral border of the humerus bone.^[1] It is situated alongside the posterior margin of the deltoid tuberosity, ending at its inferior margin.^[2]

Although it provides protection to the radial nerve, it is often involved in compressions on the nerve (due to external pressure due to surgery) that can cause radial nerve palsy.^[1]

• Intertubercular groove
• Triceps brachii muscle

• 
  Cross-section through the middle of upper arm.
• 
  The brachial artery.
• 
  The suprascapular, axillary, and radial nerves.

This article incorporates text in the public domain from page 211 of the 20th edition of Gray's Anatomy (1918)

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