It has three parts:
Tuberculum sellae
– forms the anterior wall of the sella turcica, and the posterior aspect of the chiasmatic groove. Hypophyseal fossa – the deepest part of the sella turcica, where the pituitary gland is located. Dorsum sellae – forms the posterior wall of the sella turcica.
Where is sella turcica found?
The sella turcica is a
midline depression in the sphenoid bone
which contains the pituitary gland and distal portion of the pituitary stalk.
Where is the site of sella turcica?
The sella turcica is located in
the sphenoid bone behind the chiasmatic groove and the tuberculum sellae
. It belongs to the middle cranial fossa. The sella turcica’s most inferior portion is known as the hypophyseal fossa (the “seat of the saddle”), and contains the pituitary gland (hypophysis).
What is the name for the dorsal part of the sella turcica?
portion of this seat, or sella turcica (“Turk’s saddle”), is actually wall-like and is called
the dorsum sellae
. The pituitary gland is thus situated in almost the centre of the cranial cavity.
What structure sits in the sella turcica in life?
The sella turcica (“Turkish saddle”) is a concave, midline depression in the basisphenoid that contains
the pituitary gland
(also called the hypophysis).
What is enlarged sella?
Empty sella syndrome (ESS) may occur if you have an enlarged sella turcica. This is a
bony structure where the
pituitary gland sits at the base of the brain. During an imaging test of the area, the pituitary gland may first look like it is missing. There are 2 types of ESS: primary and secondary.
Why is the sella turcica important?
The sella turcica serves as an
important anatomical reference in orthodontics
partly because the s-point, placed centrally in the sella region, is a central fix point in cephalometric analysis and partly because the contour of the anterior wall is used in evaluation of craniofacial growth.
What is Tuberculum Sella?
Gross anatomy
The tuberculum sellae forms
the anterior wall of the sella turcica
, which houses the pituitary gland. It is an elongated ridge located immediately posterior to the chiasmatic groove, hence is related to the optic chiasm and anterior portions of the optic tracts.
What is empty sella syndrome?
Empty Sella Syndrome (ESS) is
a disorder that involves the sella turcica
, a bony structure at the base of the brain that surrounds and protects the pituitary gland. ESS is often discovered during radiological imaging tests for pituitary disorders. ESS occurs in up to 25 percent of the population.
Which bone holds the pituitary gland?
The pituitary gland or the hypophysis cerebri is a vital structure of the human body as it performs essential functions for sustaining life. It has the pseudonym of “the master gland.” The location of the gland is within the sella turcica
of the sphenoid bone
.
What part of the body is the sella?
It is a
saddle-like bony formation on the upper surface of the body of sphenoid bone
. The anterior border of the sella turcica is represented by the tuberculum sellae and the posterior border by the dorsum sellae.
What is the sella?
The sella turcica is
a saddle-shaped depression located in the bone at the base of skull
(sphenoid bone), in which resides the pituitary gland.
What does dorsum sella mean?
The term dorsum sellae is Latin, and it means “
the back of the saddle
.” The saddle refers to the part of the cranial sphenoid bone called the sella turcica, which translates to “the Turkish saddle.” The rear border of the sella turcica is the dorsum sellae, which is a plate of bone formed in a square shape.
What is a partially empty sella in the brain?
Partial empty sella syndrome means
your sella is less than half full of CSF
, and your pituitary gland is 3 to 7 millimeters (mm) thick. Total empty sella syndrome means more than half of your sella is filled with CSF, and your pituitary gland is 2 mm thick or less.
Can you live without a pituitary gland?
The pituitary gland is called the master gland of the endocrine system. This is because it controls many other hormone glands in the body. According to The Pituitary Foundation, without it,
the body wouldn’t reproduce
, wouldn’t grow properly and many other bodily functions just wouldn’t function.
Is it normal to have a partially empty sella?
Either the gland has shrunk or has been crushed and flattened making it look like an empty sella on MRI scan. The reported prevalence of primary empty sella in general
population is 8–35 %
. The incidence is more in females, the ratio being 5:1. It is generally found in middle aged women who are obese and hypertensive.
