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 in the sphenoid bone of the skull. It retains the pituitary gland in the fossa hypophyseos, with only the infundibulum of the pituitary gland passing through it.

[edit] Additional images

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

Human brain dura mater (reflections)

[edit] External links

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

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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 As such, some of the information contained within it may be outdated.

v • d • e Anatomy: meninges of the brain and medulla spinalis (TA A14.1.01, GA 9.749/9.872) Layers Dura mater Falx cerebri · Tentorium cerebelli · Falx cerebelli · Diaphragma sellae · Trigeminal cave Arachnoid mater Arachnoid granulation Subarachnoid cisterns: Cisterna magna · Pontine cistern · Interpeduncular cistern · Chiasmatic · Lateral cerebral fossa · Of great cerebral vein Pia mater Denticulate ligaments Tela chorioidea (Tela chorioidea of third ventricle, Tela chorioidea of fourth ventricle) · Choroid plexus Combined Filum terminale · Leptomeninges Spaces Epidural space · Subdural space · Subarachnoid space (Cerebrospinal fluid)