Sigmoid sulcus

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Bone: Sigmoid sulcus
Left temporal bone. Inner surface. (Sigmoid sulcus visible at center left.)
Base of the skull. Upper surface. (Sigmoid sulcus not labeled, but is visible near mastoid foramen.)
Latin sulcus sinus sigmoidei ossis temporalis
Gray's subject #34 142
/ Elsevier

The inner surface of the mastoid portion of the temporal bone presents a deep, curved groove, the sigmoid sulcus, which lodges part of the transverse sinus; in it may be seen the opening of the mastoid foramen.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. Template:Skull