Anatomy & Physiology: The Unity of Form and Function, 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073403717
ISBN 13: 978-0-07340-371-7

Chapter 20 - Section 20.7 - Study Guide - Assess Your Learning Outcomes - Page 799: 16

Answer

The superior mesenteric artery is a major branch of the abdominal aorta that supplies blood to the small intestine and the first two-thirds of the large intestine. The branches you mentioned are as follows: 1. Inferior Pancreaticoduodenal Arteries: These arteries supply blood to the inferior part of the duodenum (the first part of the small intestine) and the head of the pancreas. 2. Jejunal Arteries: The jejunal arteries supply blood to the jejunum, which is the upper part of the small intestine. These arteries contribute to the arterial supply of the small intestine. 3. Ileal Arteries: The ileal arteries supply blood to the ileum, which is the lower part of the small intestine. These arteries play a role in providing oxygenated blood to the ileum. 4. Right Colic Artery: This artery supplies blood to the ascending colon (the right portion of the colon). 5. Middle Colic Artery: The middle colic artery supplies blood to the transverse colon (the middle portion of the colon). These branches of the superior mesenteric artery collectively provide blood to a significant portion of the gastrointestinal tract, including the small intestine and a substantial part of the large intestine. They are crucial for maintaining the viability and function of these digestive organs. For more detailed and specific information, I recommend consulting a reliable anatomy textbook or medical resource.

Work Step by Step

The superior mesenteric artery is a major branch of the abdominal aorta that supplies blood to the small intestine and the first two-thirds of the large intestine. The branches you mentioned are as follows: 1. Inferior Pancreaticoduodenal Arteries: These arteries supply blood to the inferior part of the duodenum (the first part of the small intestine) and the head of the pancreas. 2. Jejunal Arteries: The jejunal arteries supply blood to the jejunum, which is the upper part of the small intestine. These arteries contribute to the arterial supply of the small intestine. 3. Ileal Arteries: The ileal arteries supply blood to the ileum, which is the lower part of the small intestine. These arteries play a role in providing oxygenated blood to the ileum. 4. Right Colic Artery: This artery supplies blood to the ascending colon (the right portion of the colon). 5. Middle Colic Artery: The middle colic artery supplies blood to the transverse colon (the middle portion of the colon). These branches of the superior mesenteric artery collectively provide blood to a significant portion of the gastrointestinal tract, including the small intestine and a substantial part of the large intestine. They are crucial for maintaining the viability and function of these digestive organs. For more detailed and specific information, I recommend consulting a reliable anatomy textbook or medical resource.
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