Incisura anterior auris

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Incisura anterior auris
The incisura anterior auris (not labeled here) is the space created between the tragus and antitragis.
Latin incisura intertragica
TA A15.3.01.019
FMA 61175
Anatomical terminology

The incisura anterior auris, or intertragic incisure,[1] is the space between the tragus and antitragus of the pinna — a portion of the external ear. Other names include anterior auricular groove, auricular notch, sulcus auriculae anterior.

The incisura anterior auris is the point specified (although not by that name) in the U.S. Army’s regulation governing length of sideburns in male soldiers.[2]


  1. ^ Williams, Peter L., et al, editors (1989), Gray’s Anatomy, 37th edition, Churchill Livingstone, pg 1220.
  2. ^ Army Regulation 670–1 (3 February 2005),”Wear and Appearance of Army Uniforms and Insignia”, 1-8, a, (2), b. “Sideburns will not extend below the lowest part of the exterior ear opening.”