Tuberculum sellae

The tuberculum sellae (or the tubercle of the sella turcica) is a part of the sphenoid bone that is an elevation behind the chiasmatic groove. A variable slight to prominent median elevation forming the posterior boundary of the chiasmatic groove and the anterior boundary of the hypophysial fossa.

Tuberculum sellae
Sphenoid bone. Upper surface. (Tuberculum sellae visible at center.)
Base of the skull. Upper surface. (Sphenoid bone visible in yellow, the tuberculum sellae is labeled at the right, fourth from the top of the yellow section.)
Anatomical terminology

Additional Images


This article incorporates text in the public domain from page 147 of the 20th edition of Gray's Anatomy (1918)

  • "Anatomy diagram: 34257.000-2". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2014-01-01.
  • Diagram at

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