Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Chapter 22.3, Problem 1QC
Summary Introduction
To review:
The reason behind the extra layer of smooth muscle in muscularis externa of the stomach.
Introduction:
The stomach contains four tissue layers, which are same as that of the alimentary canal. The layers are mucosa, submucosa, muscularis externa, and serosa. The stomach’s mucosa and muscularis externa are modified, such that they can perform their functions in a better manner.
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Chapter 22 Solutions
Human Anatomy & Physiology
Ch. 22.1 - Prob. 1QCCh. 22.1 - 2. What are the six basic processes of the...Ch. 22.1 - How do the effects of the sympathetic and...Ch. 22.1 - How does the endocrine system regulate digestive...Ch. 22.1 - Prob. 5QCCh. 22.1 -
6. Which type of epithelium makes up the mucosa...Ch. 22.1 - Prob. 7QCCh. 22.1 - Prob. 8QCCh. 22.1 - Prob. 9QCCh. 22.2 - Which structures form the lateral, anterior, and...
Ch. 22.2 - Prob. 2QCCh. 22.2 - Prob. 3QCCh. 22.2 - Prob. 4QCCh. 22.2 - Prob. 5QCCh. 22.2 - Prob. 6QCCh. 22.2 - What are the components of saliva, and what are...Ch. 22.2 - Prob. 8QCCh. 22.2 - What is the primary digestive function of the...Ch. 22.2 - Prob. 10QCCh. 22.2 - Prob. 11QCCh. 22.2 - Prob. 12QCCh. 22.2 - Prob. 13QCCh. 22.3 - Prob. 1QCCh. 22.3 - 3. What are the primary cell types of the gastric...Ch. 22.3 - Prob. 3QCCh. 22.3 - Prob. 4QCCh. 22.3 - Prob. 5QCCh. 22.4 - Prob. 1QCCh. 22.4 - Prob. 2QCCh. 22.4 - Prob. 3QCCh. 22.4 - Prob. 4QCCh. 22.5 - Prob. 1QCCh. 22.5 - Prob. 2QCCh. 22.5 - Prob. 3QCCh. 22.5 - Prob. 4QCCh. 22.5 - 5. Why is control of motility in the large...Ch. 22.5 - Prob. 6QCCh. 22.5 - Prob. 7QCCh. 22.6 - Prob. 1QCCh. 22.6 - 2. How do CCK and secretin affect pancreatic...Ch. 22.6 - Prob. 3QCCh. 22.6 - Prob. 4QCCh. 22.6 - Prob. 5QCCh. 22.7 - Prob. 1QCCh. 22.7 - Prob. 2QCCh. 22.7 - Prob. 3QCCh. 22.7 - Prob. 4QCCh. 22.7 - Prob. 5QCCh. 22.7 - Prob. 6QCCh. 22.7 - 7. Where does lipid digestion begin and with...Ch. 22.7 - Prob. 8QCCh. 22.7 - Prob. 9QCCh. 22.7 - Prob. 10QCCh. 22.7 - How is water absorbed in the small and large...Ch. 22.7 - Prob. 12QCCh. 22.8 - Prob. 1QCCh. 22.8 - Prob. 2QCCh. 22 - Which of the following is not one of the six basic...Ch. 22 - The peritoneal cavity is located: a. around each...Ch. 22 - Prob. 3CYRCh. 22 - Prob. 4CYRCh. 22 - Prob. 5CYRCh. 22 - Prob. 6CYRCh. 22 - 7. Which of the following is not one of the...Ch. 22 - Prob. 8CYRCh. 22 - Prob. 9CYRCh. 22 - Prob. 10CYRCh. 22 - Prob. 11CYRCh. 22 - Prob. 12CYRCh. 22 - Prob. 13CYRCh. 22 - Prob. 14CYRCh. 22 - Prob. 15CYRCh. 22 - Prob. 16CYRCh. 22 - Prob. 17CYRCh. 22 - 18. Mark the following statements as true or...Ch. 22 - Prob. 19CYRCh. 22 - Prob. 20CYRCh. 22 - Prob. 21CYRCh. 22 - Prob. 22CYRCh. 22 - Prob. 1CYUCh. 22 - Prob. 2CYUCh. 22 - Prob. 3CYUCh. 22 - 4. Your friend insists that absorption is the most...Ch. 22 - Prob. 1AYKACh. 22 - Prob. 2AYKACh. 22 - Prob. 3AYKBCh. 22 - Prob. 4AYKBCh. 22 - Prob. 5AYKB
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- What modification of the stomach muscularis externa allows it to mechanically digest food?arrow_forwardIdentify the esophagus and stomach structuresarrow_forwardWhile most of the digestive tract has two layers of muscle in the muscularis externa (longitudinal and circular), the stomach has a third oblique layer. Based on what you know about the role of the stomach in both mechanical and chemical digestion, why do you think the stomach has this third layer?arrow_forward
- The motion of these muscles causes waves of contraction to move down the length of the small intestine. What purpose do these waves of contraction serve?arrow_forwardHow does the muscularis externa of the stomach differ from that of the esophagus?arrow_forwardWhy does the esophagus have 2 layers of smooth musclearrow_forward
- What purpose is served by muscular sphincters at various locations along the length of the GI tract?arrow_forwardwhy is there a need for sphincters in the stomach? what will happen otherwise?arrow_forwardThe entire digestive tract contains layers of muscle that contribute to the digestive process. However, these muscle layers are not the same in all parts of the digestive tract. Describe two examples of digestive organs with unique specializations of these muscle layers and how these specializations contribute to the function of the organs where you find them.arrow_forward
- Projections of the small intestinal mucosa that protrude into the lumen and increase the surface area are the: chordae tendineae plicae circularis haustra Peyer's patchesarrow_forwardWhat set of smooth muscles of the digestive tract are simultaneously doing the same thing duringn peristalsis in the esophagus as the bolus is propelled towards the stomach? Question 54 options: Longitudinal muscle in front of the bolus and longitudinal muscle behind the bolus Longitudinal muscle in front of the bolus and circular muscle in front of the bolus Circular muscle behind the bolus and circular muscle in front of the bolus Circular muscle behind the bolus and longitudinal muscle behind the bolus Circular muscle behind the bolus and longitudinal muscle in front of the bolusarrow_forwardName the serous membranes that suspend the intestines from the posterior body wall. Name the external layer of the intestines formed by an extension of this membrane?arrow_forward
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