Antrum

The stomach is divided into four main regions: the cardia, fundus, body, and pylorus. The gastric antrum is the wider, distal portion of the pylorus, situated just before the pyloric canal, which leads into the duodenum (the first part of the small intestine). Think of the stomach as a mixing bowl; the body and fundus are where ingredients are dropped in, while the antrum is the narrow neck of the vessel where the mixture is finalized before being poured out.

This article will explore the primary types of antrum, their functions, why they matter in diagnostics, and what happens when they malfunction. antrum

Whether you are a medical student memorizing stomach histology, a patient reading an endoscopy report, or a woman tracking her ovarian reserve, understanding the gives you a deeper appreciation for the precise, cavernous architecture of the human body. The stomach is divided into four main regions:

Because the antrum handles the roughest mechanical work and is the first site where partially digested food meets the pylorus, it is prone to specific diseases. This article will explore the primary types of

This region possesses a thick muscular wall designed specifically for this grinding action. As food is broken down, it is pushed against the pyloric sphincter—a muscular valve at the end of the antrum. This sphincter acts as a sieve, allowing only small particles of chyme to pass into the small intestine while retaining larger chunks for further grinding. This process is known as "antral grinding" or "trituration," and it is essential for efficient nutrient absorption later in the digestive tract.