SINUS OBLIQUUS Meaning and
Definition
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Sinus obliquus is a Latin anatomical term used to describe a structure known as the "oblique sinus." The oblique sinus is a space or cavity located within the pericardium, which is the protective membrane surrounding the heart. Specifically, the sinus obliquus refers to the posterior part of the oblique sinus.
The oblique sinus is formed by the reflection of the pericardium from the roots of the heart onto the diaphragmatic surface. As the name suggests, the sinus obliquus has an oblique or slanted orientation. It lies at the back of the heart, between the left atrium and the dorsal surface of the pericardium.
The sinus obliquus is important in cardiovascular physiology as it is involved in the drainage of blood and lymphatic fluid from the heart. It serves as a channel for venous drainage, specifically for the veins of the posterior aspect of the heart. These veins transport deoxygenated blood and waste materials away from the heart muscle, allowing for efficient circulation.
In summary, sinus obliquus refers to the posterior part of the oblique sinus, which is a cavity located within the pericardium of the heart. It plays a crucial role in venous drainage, facilitating the removal of deoxygenated blood and waste products from the heart muscle.
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Oblique s., a pericardial fold covering the posterior aspect of the left atrium (auricle) between that and the esophagus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SINUS OBLIQUUS
Etymology of SINUS OBLIQUUS
The term "sinus obliquus" comes from Latin.
- "Sinus" means "curve" or "bend".
- "Obliquus" means "slanting" or "oblique".
When combined, "sinus obliquus" translates to "oblique curve" or "oblique bend". It is used in various applications, such as describing a curved structure or a particular anatomical feature like the sigmoid sinus (sinus obliquus) found in the brain.
