Source of bleeding ulcer on lesser curvature of stomach is:
**Core Concept**
The source of bleeding ulcers on the lesser curvature of the stomach is often related to the blood supply and mucosal protection of this region. The lesser curvature is an area with a relatively poor blood supply, making it more susceptible to ischemic damage and ulceration.
**Why the Correct Answer is Right**
The lesser curvature is primarily supplied by the right gastroepiploic artery, which is a branch of the gastroduodenal artery. This artery is relatively smaller and more fragile compared to the left gastroepiploic artery, which supplies the greater curvature. As a result, ulcers in the lesser curvature are more likely to bleed due to the limited blood supply and the presence of fragile vessels. The mucosal protection in this region is also compromised, making it more prone to ulceration and bleeding.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the question as it does not specify a location for the bleeding ulcer.
**Option B:** The left gastroepiploic artery supplies the greater curvature, not the lesser curvature, making this option incorrect.
**Option C:** The short gastric arteries supply the fundus of the stomach, not the lesser curvature, making this option incorrect.
**Clinical Pearl / High-Yield Fact**
Remember that the lesser curvature is a high-risk area for bleeding ulcers due to its poor blood supply and compromised mucosal protection. Always consider this region when evaluating patients with suspected bleeding ulcers.
**Correct Answer: C. Short gastric arteries.