What is the purpose of anterior cranial fossa?
The anterior cranial fossa is a depression in the cranial base, which primarily supports the large frontal lobes of the cerebral hemispheres. However, in the center of the anterior cranial fossa are small depressions, the olfactory fossae, which support the olfactory bulbs (Figs. 2.1, 2.6, and 2.7).
What passes through anterior cranial fossa?
The paired anterior ethmoidal foramen connects the anterior cranial fossa with each orbit and transmits the anterior ethmoidal artery, nerve and vein.
Which part of the brain occupies the anterior cranial fossa?
frontal bone
-Anterior Cranial Fossae The orbital part of the frontal bone, the cribriform plates of the ethmoid bone with the crista galli, and the lesser wings and jugum of the sphenoid bone form the anterior cranial fossa. It is occupied mainly by the frontal lobes of the cerebral hemispheres of the brain.
What organs are contained in each cranial fossa?
Anatomical terminology The posterior cranial fossa is part of the cranial cavity, located between the foramen magnum and tentorium cerebelli. It contains the brainstem and cerebellum. This is the most inferior of the fossae. It houses the cerebellum, medulla and pons.
How many Fossas are there in the human body?
The floor of the cranial cavity is divided into three distinct depressions. They are known as the anterior cranial fossa, middle cranial fossa and posterior cranial fossa. Each fossa accommodates a different part of the brain. The anterior cranial fossa is the most shallow and superior of the three cranial fossae.
What is the meaning of cranial fossa?
n. The internal base of the skull in which rest the frontal and temporal lobes of the brain, the pituitary gland, the cerebellum, the pons, and the medulla oblongata.
What is human fossa?
45791. Anatomical terminology. In anatomy, a fossa (/ˈfɒsə/; plural fossae (/ˈfɒsiː/ or /ˈfɒsaɪ/); from Latin fossa, “ditch” or “trench”) is a depression or hollow, usually in a bone, such as the hypophyseal fossa (the depression in the sphenoid bone).
Where is the fossa in the body?
The fossa is located behind the zygomatic process of the frontal bone in the anterior and lateral part of the orbital roof.
What is a Fossas function?
The ischiorectal fossa (Figs 4.42, 4.43) is a fat-containing space which allows expansion of the anal canal.
What is a fossa in medical?
Medical Definition of fossa : an anatomical pit, groove, or depression the temporal fossa of the skull the fossa in the liver for the gallbladder. Other Words from fossa.
Where is the fossa in the brain?
The posterior fossa is a small space in the skull, found near the brainstem and cerebellum. The cerebellum is the part of the brain responsible for balance and coordinated movements.