Diaphragma sellae

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Diaphragma sellae

Tentorium cerebelli seen from above. (Diaphragma sellae labeled at upper left.)
Latin	Diaphragma sellae
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 of the diaphragma sellae is by the first division of the trigeminal nerve.

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)

External links

28:14-0101 at the SUNY Downstate Medical Center - "Cranial Fossae: Diaphragma Sellae"
Diaphragma+sellae at eMedicine Dictionary
Imaging at wfns.org

This article incorporates text from a public domain edition of Gray's Anatomy.

Anatomy: meninges of the brain and medulla spinalis (TA A14.1.01, GA 9.749/9.872)

Layers

Dura mater

Arachnoid mater

Arachnoid granulation Arachnoid trabeculae

Subarachnoid cisterns:	Cisterna magna Pontine cistern Interpeduncular cistern Chiasmatic Lateral cerebral fossa Of great cerebral vein Of lamina terminalis

Pia mater

Combined

Filum terminale
Leptomeninges

Spaces

M: CNS

anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug (N1A/2AB/C/3/4/7A/B/C/D)

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