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Additional
diaphragma sellae
English Wikipedia - The Free Encyclopedia
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Diaphragma sellae
The
diaphragma sellae
or
sellar diaphragm
is a flat piece of
dura mater
with a circular hole allowing the vertical passage of the
pituitary stalk
. It retains the
pituitary gland
beneath it in the
fossa hypophyseos
as it almost completely roofs the fossa hypophyseos of the
sella turcica
, a part of the
sphenoid bone
. It has a posterior boundary at the
dorsum sellae
and an anterior boundary at the
tuberculum sellae
along with the two small eminences (one on either side) called the
middle clinoid processes
. The diaphragma sellae is innervated by the first division of the
cranial
trigeminal nerve
.
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