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The sella turcica is located in the sphenoid bone behind the chiasmatic groove and the tuberculum sellae.It belongs to the middle cranial fossa. [1]The sella turcica's most inferior portion is known as the hypophyseal fossa (the "seat of the saddle"), and contains the pituitary gland (hypophysis).
The anterior and posterior clinoid processes surround the sella turcica like the four corners of a four poster bed. Cline is Greek for bed. –oid, as usual, indicates a similarity to. [8] The term may also come from the Greek root klinein or the Latin clinare, both meaning "sloped" as in "inclined".
The middle clinoid process is a small, bilaterally paired elevation on either side of the tuberculum sellae, at the anterior boundary of the sella turcica.A (larger) anterior clinoid process is situated lateral to each middle clinoid process.
a median portion, known as the body of sphenoid bone, containing the sella turcica, which houses the pituitary gland as well as the paired paranasal sinuses, the sphenoidal sinuses [5] two greater wings on the lateral side of the body and two lesser wings from the anterior side.
It sits in a protective bony enclosure called the sella turcica, covered by the dural fold diaphragma sellae. [4] The pituitary gland is composed of the anterior pituitary, the posterior pituitary, and an intermediate lobe that joins them. [5] The intermediate lobe is avascular and almost absent in humans. In many animals, these three lobes are ...
The posterior clinoid processes are the tubercles of the sphenoid bone situated at the superior angles of the dorsum sellae (one on each angle) which represents the posterior boundary of the sella turcica. They vary considerably in size and form.
The tuberculum sellae (or the tubercle of the sella turcica) is a slight [1] median elevation upon the superior aspect of the body of sphenoid bone (that forms the floor of the middle cranial fossa [2]: 508-509 ) at the anterior boundary of the sella turcica (hypophyseal (pituitary) fossa) [2]: 509 and posterior boundary of the chiasmatic groove.
Base of skull - sella turcica. The anterior, middle and posterior cranial fossa in different colors This page was last edited on 16 August 2024, at 19:24 ...