Diaphragma sellae

Diaphragma sellae
Tentorium cerebelli seen from above. (Diaphragma sellae labeled at upper left.)
Gray's	subject #189 814

The diaphragma sellae or sellar diaphragm is the circular fold of dura mater that almost completely roofs the fossa hypophyseos of the sella turcica of the sphenoid bone within the skull. It retains the pituitary gland in the fossa hypophyseos, with only the infundibulum of the pituitary gland passing through it. The sensory innervation or the diaphragma sellae is by the first division of the trigeminal nerve.

Additional images

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  Dura mater and its processes exposed by removing part of the right half of the skull, and the brain.

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  Human brain dura mater (reflections)

External links

• SUNY Labs 28:14-0101 - "Cranial Fossae: Diaphragma Sellae"
• Diaphragma+sellae at eMedicine Dictionary
• Imaging at wfns.org

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.