Antrum Gastric Jun 2026

Under a microscope, the antrum looks distinct from the rest of the stomach:

| Feature | Detail | | :--- | :--- | | | Distal stomach, before the pylorus. | | Main Function | Grinding food (mechanical digestion) and Gastrin secretion. | | Key Cells | G-Cells (Gastrin), D-Cells (Somatostatin). | | Common Issues | H. pylori gastritis, Ulcers, Gastric Cancer. | | Distinctive Feature | Lacks acid-producing cells (parietal cells). | antrum gastric

To understand the antrum, one must visualize the stomach's anatomy, divided into four main regions: Under a microscope, the antrum looks distinct from

The (or pyloric antrum) is the lower, funnel-shaped region of the stomach that acts as a critical gateway to the small intestine. Positioned just before the pyloric sphincter, its primary roles include grinding food into a digestible paste (chyme) and regulating the release of stomach contents into the duodenum through specialized hormonal signaling. Because it is the most dependent part of the stomach, the antrum is also the primary site for medical imaging, such as point-of-care ultrasound (POCUS), to assess gastric volume and aspiration risk before surgery. Anatomy and Cellular Structure | | Common Issues | H

The antrum gastric performs several important functions: