What is the diaphragma sellae?

The diaphragma sellae is a sheet of dura mater that forms the roof of the pituitary fossa. It is described as a two-layer sheet of dura mater that merges anteriorly with the dura covering the planum sphenoidale and the anterior cranial fossa and posteriorly with the dura covering the dorsum sellae and the clivus.

What is the function of diaphragma sellae?

The diaphragma sellae forms the roof of the sella turcica (see Figure 10-1). It covers the pituitary gland, except for a small central opening in its center, which transmits the pituitary stalk.

What passes through the diaphragm 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.

What is the Tuberculum Sellae?

The tuberculum sellae is the ridged process of the sphenoid bone which forms the anterior wall of the sella turcica.

What does dorsum Sella mean?

The dorsum sellae is the square shaped process of the sphenoid bone. It ascends superiorly from the posterior part of the sphenoid body to form the posterior wall of the sella turcica.

What is Sellar region?

The sellar region is a tiny anatomic compartment in which many lesions and developmental diseases can be found. The area immediately around the pituitary, the sellar region and parasellar region, is an anatomically complex area that represents a crucial crossroads for important adjacent structures.

What does Tuberculum mean?

nodule
1. a nodule or small eminence, especially one on a bone, for attachment of a tendon; see also tuber and tuberosity. Called also tuberculum. adj., adj tuber´cular, tuber´culate.

What is clivus?

(KLY-vus) A bone at the base of the skull, near the spine. Tumors, such as chordomas and chondrosarcomas, may form on the clivus. Enlarge. Anatomy of the spine.

How do you pronounce Salae?

Saleae is pronounced say-lee-a, with the emphasis (stress) on the first syllable, as in SAY-lee-a.

Where is the diaphragma sellae located in the skull?

The diaphragma sellae is located in the center of the skull base; it continues anteriorly with the dura mater that covers the planum of the sphenoid bone and the anterior cranial fossa, posteriorly with the dura mater covering the dorsum sellae and clivus, and laterally with the superficial layer of the roof and lateral wall of the cavernous sinus.

What kind of dura mater is diaphragma sellae?

The diaphragma sellae is a flat piece of dura mater with a circular hole allowing the vertical passage of the pituitary stalk.

Is the diaphragma the roof of the sella turcica?

The diaphragma sellae forms the roof of the sella turcica (see Figure 10-1 ). It covers the pituitary gland, except for a small central opening in its center, which transmits the pituitary stalk.

Where is the pituitary gland located in diaphragma sellae?

Tentorium cerebelli seen from above. (Diaphragma sellae labeled at upper left.) 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…