Right gastric nodes drain from which pa of stomach
**Core Concept**
The right gastric nodes are a group of lymph nodes located in the hepatoduodenal ligament, which plays a crucial role in the drainage of the stomach. The stomach is divided into two main parts: the proximal (or lesser curvature) part and the distal (or greater curvature) part, each with its own lymphatic drainage pathways.
**Why the Correct Answer is Right**
The right gastric nodes receive lymphatic drainage from the proximal part of the stomach, specifically from the lesser curvature. This is because the right gastric artery, which supplies the lesser curvature, also provides a conduit for lymphatic vessels to drain into the right gastric nodes. The right gastric nodes then drain into the hepatic nodes, which are part of the hepatic lymphatic system.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the left gastric nodes, not the right gastric nodes, receive lymphatic drainage from the distal part of the stomach, specifically from the greater curvature.
**Option B:** This option is incorrect because the pyloric nodes receive lymphatic drainage from the pylorus, which is the region of the stomach where the antrum and the duodenum meet, not from the lesser curvature.
**Option C:** This option is incorrect because the hepatic nodes receive lymphatic drainage from the liver and the gallbladder, not directly from the stomach.
**Clinical Pearl / High-Yield Fact**
The lymphatic drainage of the stomach is crucial for the spread of gastric malignancies. Knowledge of the lymphatic drainage pathways of the stomach is essential for surgeons and medical oncologists to plan treatment strategies for gastric cancer.
**Correct Answer: D. The lesser curvature of the stomach.**