Petrosal sinus
Petrosal Sinus
Petrosal Sinus (pronunciation: peh-troh-sal si-nus) is a term used in anatomy to refer to two distinct venous sinuses in the human body: the superior petrosal sinus and the inferior petrosal sinus. Both are located in the petrous part of the temporal bone.
Etymology
The term "Petrosal Sinus" is derived from the Greek word "petros," meaning "rock," and the Latin word "sinus," meaning "bay" or "fold." This is in reference to the hard, rocky nature of the petrous part of the temporal bone where these sinuses are located.
Superior Petrosal Sinus
The superior petrosal sinus drains the cerebellum and the posterior cranial fossa. It begins near the cavernous sinus, runs along the upper border of the petrous part of the temporal bone, and ends in the sigmoid sinus.
Inferior Petrosal Sinus
The inferior petrosal sinus drains the cavernous sinus into the internal jugular vein. It is located in the groove between the basilar part of the occipital bone and the lateral part of the sphenoid bone.
Related Terms
- Cavernous Sinus
- Sigmoid Sinus
- Internal Jugular Vein
- Cerebellum
- Posterior Cranial Fossa
- Temporal Bone
- Occipital Bone
- Sphenoid Bone
External links
- Medical encyclopedia article on Petrosal sinus
- Wikipedia's article - Petrosal sinus
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski