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. two greater wings on the lateral side of the body and two lesser wings from the anterior side.
Which bone houses the pituitary gland?
The sphenoid bone shares a close anatomical relationship with the pituitary gland. Indeed, the pituitary can be accessed surgically by passing instruments through the sphenoid bone and sinus.
What cranial bone 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 part of the cranial base house is pituitary?
The middle cranial fossa consists of a central portion, which contains the pituitary gland, and two lateral portions, which accommodate the temporal lobes of the brain.
Which is the only moveable facial bone?
The mandible is a U-shaped bone. It is the only mobile bone of the facial skeleton, and, since it houses the lower teeth, its motion is essential for mastication. It is formed by intramembranous ossification. The mandible is composed of 2 hemimandibles joined at the midline by a vertical symphysis.
What is the weakest part of the skull?
Clinical significance
The pterion is known as the weakest part of the skull. The anterior division of the middle meningeal artery runs underneath the pterion. Consequently, a traumatic blow to the pterion may rupture the middle meningeal artery causing an epidural haematoma.
Where is the cranial bone located?
This is a flat bone located in the very back of your skull . It has an opening that allows your spinal cord to connect to your brain.
How many cranial bones do you have?
The eight bones of the cranium form the “vault” that encloses the brain. They include the frontal, parietal, occipital, temporal, sphenoid and ethmoid bones.
Which bones protect the brain?
Cranium . The eight bones that protect the brain are called the cranium. The front bone forms the forehead. Two parietal bones form the upper sides of the skull, while two temporal bones form the lower sides.
What are the hormones of pituitary gland?
- ACTH: Adrenocorticotrophic hormone. ...
- FSH: Follicle-stimulating hormone. ...
- LH: Luteinizing hormone. ...
- GH: Growth hormone. ...
- PRL: Prolactin. ...
- TSH: Thyroid-stimulating hormone.
What are the disorders of the pituitary gland?
- Acromegaly.
- Craniopharyngioma.
- Cushing Disease / Cushing Syndrome.
- Growth Hormone Deficiency.
- Nonfunctioning Pituitary Adenoma.
- Prolactinoma.
- Rathke’s Cleft Cyst.
What bony landmark can we find 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 .
Where is the thickest part of your skull?
Conclusion: The thickest area of the skull is the parasagittal posterior parietal area in male skulls and the posterior parietal area midway between the sagittal and superior temporal line in female skulls.
What part of your skull is the strongest?
Your mandible, or jawbone , is the largest, strongest bone in your face. It holds your lower teeth in place and you move it to chew your food. Apart from you mandible and your vomer, all your facial bones are arranged in pairs.
What is the longest strongest and heaviest bone in the human body?
The femur bone is the longest and strongest bone in the body. Located in the thigh, it spans the hip and knee joints and helps maintain upright posture by supporting the skeleton.
What is Bregma?
The bregma is the midline bony landmark where the coronal and sagittal sutures meet , between the frontal and two parietal bones. It is the anterior fontanelle in the neonate and closes in the second year 2 (typically around 18 months after birth).
