Radial groove

Humerus
Left humerus. Posterior view. (Label, visible at center, is "Groove for radial nerve")
Details
Identifiers
Latinsulcus nervi radialis
TA98A02.4.04.014
TA21197
FMA23417
Anatomical terms of bone

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]

  1. ^ a b Sadan AY; Ibrahim TEKDEMIR; Ugur SAYLI; Alaittin ELHAN; K. Mine ERBIL; Ruhgun BASAR (October 1999). "Relation of the Radial Nerve with the Sulcus Nervi Radians: A Morphometric Study". Okajimas Folia Anatomica Japonica. 76 (4): 197–202. doi:10.2535/ofaj1936.76.4_197. PMID 10565203.
  2. ^ Martini, Frederic; Tallitsch, Robert B.; Nath, Judi L. (2017). Human Anatomy (9th ed.). Pearson. p. 177. ISBN 9780134320762.