Petro-occipital fissure
(Redirected from Petroöccipital fissure)
Petro-occipital fissure is a small, anatomical structure found in the human skull. It is a narrow, slit-like opening located between the petrous part of the temporal bone and the occipital bone. The petro-occipital fissure is significant in the study of anatomy and neurology due to its location and the structures it is associated with.
Etymology[edit | edit source]
The term "petro-occipital fissure" is derived from the Latin words "petrosus," meaning rocky, and "occipitalis," referring to the back of the head. "Fissure" is derived from the Latin word "fissura," meaning a narrow opening or crack.
Anatomy[edit | edit source]
The petro-occipital fissure is located at the base of the skull, specifically between the petrous part of the temporal bone and the occipital bone. It is a narrow, slit-like opening that allows for the passage of structures such as the inferior petrosal sinus and the meningeal branches of the ascending pharyngeal and occipital arteries.
Clinical Significance[edit | edit source]
The petro-occipital fissure is of clinical significance due to its location and the structures it is associated with. It is often studied in the context of cranial nerve anatomy, neurological disorders, and cranial surgery. Understanding the anatomy of the petro-occipital fissure can aid in the diagnosis and treatment of conditions such as basilar skull fractures, cerebrovascular diseases, and tumors of the base of the skull.
Related Terms[edit | edit source]
- Petrous part of the temporal bone
- Occipital bone
- Inferior petrosal sinus
- Meningeal branches
- Cranial nerves
- Basilar skull fracture
- Cerebrovascular disease
- Tumor
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