BASILAR FOSSA Meaning and
Definition
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The basilar fossa is a term used in anatomy to describe a specific region of the skull base. It refers to a depression or groove located on the inner surface of the occipital bone, at the posterior part of the skull. This fossa is formed by the convergence of the clivus, a sloping surface of the sphenoid bone, with the posterior part of the occipital bone.
The basilar fossa is a crucial landmark within the skull as it serves as the floor of the posterior cranial fossa. It provides protection and support to a multitude of important structures within the brain, including the brainstem and cerebellum. Additionally, it provides a pathway for various blood vessels such as the basilar artery, which supplies blood to the brain.
The basilar fossa is not completely flat but rather exhibits several bony ridges and elevations. These features help to provide added structural strength and stability to the skull base. Moreover, they serve as attachment points for various ligaments and muscles that are involved in head and neck movements.
Clinically, the basilar fossa is of significant importance in radiology and neurosurgery. Its evaluation is crucial in the diagnosis and treatment of various conditions, including skull base fractures, brainstem pathologies, and tumors. Understanding the anatomy and landmarks of the basilar fossa is essential in interpreting radiographic images and planning surgical approaches for neurosurgical interventions.
Etymology of BASILAR FOSSA
The word "basilar fossa" is derived from Latin and Greek roots.
The term "basilar" comes from the Latin word "basis", meaning "foundation" or "base". In anatomy, it refers to the region at the base of the skull or a structure that is situated at the base or bottom of another.
The word "fossa" is derived from the Latin word "fossus", which means "ditch" or "trench". In anatomy, it refers to a hollow or depressed area, often used to describe an anatomical depression or groove in a bone.
Therefore, the term "basilar fossa" refers to the hollow or depressed area situated at the base of the skull, specifically referring to the concave surface on the interior aspect of the occipital bone.
Similar spelling word for BASILAR FOSSA
