| | Location | Function/Note | | :--- | :--- | :--- | | Pyloric antrum | Lower stomach, synonymous with gastric antrum. | Often used interchangeably. | | Maxillary antrum | A synonym for the maxillary sinus (cheek sinus). | The largest of the paranasal sinuses; prone to sinusitis. | | Cardiac antrum | Inside the heart (right ventricle, near the tricuspid valve). | A less common term; rarely used in general practice. | | Follicular antrum | Ovary (covered in Part 2). | The standardized term in histology. |
While "gastric," "ovarian," and "mastoid" are the big three, you will see the term in a few other locations: antrum
by contracting to push partially digested food (chyme) into the duodenum. Antrum: The Deadliest Film Ever Made | | Location | Function/Note | | :---
The stomach is a J-shaped organ divided into several regions: the cardia (top), fundus, body (corpus), and finally, the . The gastric antrum is the lower, funnel-shaped portion of the stomach that lies just before the pyloric sphincter—the muscular valve that opens into the first part of the small intestine (duodenum). | The largest of the paranasal sinuses; prone to sinusitis