The pituitary gland is located in the sella turcica, “Turk’s saddle,” of the sphenoid bone.
In which skull sphenoid bone marking does the pituitary gland sit?
Located at the base of the brain, the pituitary gland is protected by a bony structure called the sella turcica of the sphenoid bone.
|Type of cell||Somatotropes|
|Hormone secreted||human growth hormone (hGH)|
|Percentage of type of cell||30-50%|
What bone marking protects the pituitary gland?
Sphenoid bone primarily consists of a centrally positioned body, which surrounds and protects the pituitary gland, and two sets of lateral, wing-like extensions called the greater and lesser wings.
What structure sits in the sella turcica quizlet?
The Hypophyseal Fossa is “seat of the saddle” (Sella Turcica) part of the Sphenoid bone. It is the groove that is the deepest part of the body and it holds the Pituitary gland.
Which cranial bone contains the sella turcica quizlet?
The sella turcica is a depression in the central region of the sphenoid bone. It houses the pituitary gland.
What part of the sphenoid holds the pituitary gland?
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 part of the sphenoid bone houses the pituitary gland?
The body of the sphenoid is the central part of the bone. It is a hollowed-out, cubical portion of the bone that forms the sphenoidal sinuses. The body is home to a deep depression known as the Sella turcica, which houses the pituitary gland.
What marking does the pituitary gland sit?
The pituitary gland is located at the base of the brain, behind the bridge of the nose. It is about one-half inch (1.25 cm) in diameter. The pituitary gland rests within a hollowed out area of the sphenoid bone called the sella turcica.
What is the largest bone in the face?
Your mandible, or jawbone, is the largest, strongest bone in your face.
Which bone is not considered to be part of the cranium?
Which bone is NOT considered to be part of the cranium? lacrimal bone [The lacrimal bone is a tiny bone found in the medial portion of the orbit. It is a facial bone, not part of the cranium.]
Why is the sella turcica important?
During embryological development, the sella turcica area is the key point for the migration of the neural crest cells to the frontonasal and maxillary developmental fields. The neural crest cells are involved in the formation and development of sella turcica and teeth.
Which of the following are cranial bones quizlet?
22 BONES MAKE UP THE CRANIAL BONES. ONE FRONTAL, TWO PARIETAL, TWO TEMPORAL, ONE SPHENOID, ONE OCCIPITAL, AND ONE ETHMOID. LOCATED AT THE SIDES AND BASE OF THE SKULL.
What is the name of the stalk that connects the hypothalamus and pituitary gland quizlet?
What is the infundibulum? A stalk that connects the hypothalamus to the pituitary gland.
Which of the following bones contains a sinus?
Paranasal sinuses are named after the bones that contain them: frontal (the lower forehead), maxillary (cheekbones), ethmoid (beside the upper nose), and sphenoid (behind the nose).
What bone does not contain a sinus?
Explanation: There are four paranasal sinuses in the head: the frontal, maxillary, sphenoid, and ethmoid sinuses. They function in lightening the skull, and creating mucous for the nasal cavity. The temporal bone does not contain a sinus.
Which cranial bone contains supraorbital foramen and a sinus quizlet?
Forehead bone; forms anterior cranium & roof of orbits; contains the frontal sinuses. Has markings of supraorbital foramen and supraorbital margins. You just studied 25 terms!