What is the incisura of stomach?

The incisura of the stomach, also known as the incisura angularis, is a distinctive anatomical feature of the stomach that separates its two main regions: the body and the antrum. It is characterized by a deep groove or indentation on the lesser curvature of the stomach.

Here are some key points regarding the incisura of the stomach:

1. Location: The incisura of the stomach is located on the lesser curvature of the stomach, which is the concave side facing towards the liver and the diaphragm.

2. Separation of Regions: The incisura divides the stomach into two main functional regions: the body and the antrum. The body, located superior to the incisura, is the larger portion and serves as the primary site for food storage and initial digestion. The antrum, located inferior to the incisura, is the muscular part responsible for churning and mixing the food contents, preparing it for further digestion in the small intestine.

3. Anatomical Landmarks: The incisura serves as an important anatomical landmark in surgical procedures involving the stomach. Surgeons often use it as a reference point to identify the border between the body and the antrum during gastrectomy (surgical removal of part of the stomach) and other surgical interventions.

4. Clinical Significance: Diseases and conditions that affect the stomach, such as gastritis, ulcers, or tumors, can sometimes lead to changes in the appearance or location of the incisura. Radiologists and clinicians use imaging techniques, such as endoscopy or upper gastrointestinal (GI) series, to examine the incisura and identify any abnormalities or deviations from its normal position.

Overall, the incisura of the stomach is a significant anatomical feature that helps delineate the functional regions of the stomach and serves as a reference point for medical procedures and diagnostic evaluations related to the upper digestive system.