EBK HUMAN PHYSIOLOGY
8th Edition
ISBN: 9780134704227
Author: Silverthorn
Publisher: YUZU
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Chapter 21.2, Problem 9CC
Summary Introduction
To determine: The reason for tonic contraction in some sphincters of the
Introduction: Majority of the gastrointestinal tract is made up of continuous smooth muscles. These muscles have some group of cells which are connected electrically with the help of gap junctions. These cells create contracting segments. Different types of contractions can be seen in different regions of the tract. The contractions which sustain for a few minutes or several hours are known as tonic contractions.
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why is there a need for sphincters in the stomach? what will happen otherwise?
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Alternating wave-like contraction and relaxatio of the oral (mouth) muscles reabsorbs water which will be transported to the urinary system
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Chapter 21 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 21.1 - Prob. 1CCCh. 21.1 - Prob. 2CCCh. 21.1 - Prob. 3CCCh. 21.2 - Define digestion. What is the difference between...Ch. 21.2 - Prob. 5CCCh. 21.2 - Draw a cell showing (1) an enzyme in a cytoplasmic...Ch. 21.2 - Prob. 7CCCh. 21.2 - Prob. 8CCCh. 21.2 - Prob. 9CCCh. 21.3 - Prob. 10CC
Ch. 21.4 - Prob. 11CCCh. 21.6 - Do bile salts digest triglycerides into...Ch. 21.6 - Prob. 13CCCh. 21.6 - Prob. 14CCCh. 21.6 - What activates pepsinogen, trypsinogen, and...Ch. 21.6 - Prob. 16CCCh. 21 - Match each of the following descriptions with the...Ch. 21 - Prob. 2RQCh. 21 - Prob. 3RQCh. 21 - Prob. 4RQCh. 21 - Prob. 5RQCh. 21 - Prob. 6RQCh. 21 - What purposes does motility serve in the...Ch. 21 - Prob. 8RQCh. 21 - Match each of the following cells with the...Ch. 21 - Prob. 10RQCh. 21 - Prob. 11RQCh. 21 - Prob. 12RQCh. 21 - Prob. 13RQCh. 21 - What role do paracrines play in digestion? Give...Ch. 21 - Prob. 15RQCh. 21 - Prob. 16RQCh. 21 - Prob. 17RQCh. 21 - Prob. 18RQCh. 21 - Prob. 19RQCh. 21 - Prob. 20RQCh. 21 - Prob. 21RQCh. 21 - Prob. 22RQCh. 21 - Mary Littlefeather arrives in her physicians...Ch. 21 - Using what you have learned about epithelial...Ch. 21 - Intestinal transport of the amino acid analog MIT...
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- What purpose is served by muscular sphincters at various locations along the length of the GI tract?arrow_forward1) Explain how digestive system works. 2) What is the difference of non-ruminant stomach to ruminant stomach? 3) Name the four compartments of the stomach of ruminant. Which two are located primarily on the left side? Which is the largest? Which is the true“chemical stomach”?arrow_forwardDescribe the parts of the large intestine. What are teniaecoli, haustra, and crypts?arrow_forward
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