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Questions and Answers
Which of the following is NOT a part of the stomach?
What is the function of the pyloric sphincter?
Which arteries supply blood to the stomach?
Which organ is located posterior to the stomach?
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Which nerves provide parasympathetic innervation to the stomach?
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Study Notes
Stomach Structure
- The stomach is a J-shaped intraperitoneal organ that digests food from the esophagus to the duodenum.
- The stomach has four parts: cardia, fundus, body, and pylorus.
Sphincters
- The stomach has two sphincters: inferior esophageal sphincter and pyloric sphincter.
- The pyloric sphincter is located anatomically between the stomach and the first part of the duodenum.
Relations
- Anteriorly, the stomach is related to the liver and gall bladder.
- Posteriorly, the stomach is related to the pancreas, left kidney, and spleen.
Blood Supply
- The stomach receives blood supply from the right gastric artery.
- The stomach also receives blood supply from the left gastric artery, which arises from the abdominal aorta.
Nerve Supply
- The stomach receives sympathetic nerve supply from spinal nerves.
- The stomach receives parasympathetic nerve supply from vagus nerves.
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Description
Learn about the structure and functions of the stomach, including its parts, sphincters, relationships with other organs, blood supply, and nerve supply.
