Antrum
Antrum
Antrum (/ˈæntrəm/; from Ancient Greek: ἄντρον, ántron, meaning "cave") is a general term for a cavity or chamber which may have specific meanings in both medical and dental contexts.
Medical Context
In a medical context, antrum refers to a natural cavity or chamber within the body. There are several specific uses of the term in different branches of medicine:
- In gastroenterology, the pyloric antrum is the initial portion of the pylorus. It is near the bottom of the stomach, proximal to the pyloric sphincter, which separates the stomach and the duodenum. It is where the majority of stomach digestion occurs.
- In otolaryngology, the mastoid antrum is a large air cell located in the mastoid process of the temporal bone. It is connected to the middle ear, so it is often involved in ear infections.
- In gynecology, the follicular antrum refers to the fluid-filled space inside the ovarian follicle.
Dental Context
In dentistry, the term maxillary antrum or sinus maxillaris is used to refer to the largest of the paranasal sinuses, located in the maxillary bone. It is also known as the maxillary sinus.
Related Terms
- Antral: Pertaining to an antrum.
- Antritis: Inflammation of an antrum, particularly the maxillary sinus.
- Antral follicle: A stage of follicular development in the ovary, characterized by the presence of an antrum.
See Also
External links
- Medical encyclopedia article on Antrum
- Wikipedia's article - Antrum
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