Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Question
Chapter 18, Problem 33RA
Summary Introduction
To review:
The functional adaptations of the alimentary tract in order to increase its efficiency.
Introduction:
The alimentary canal is the channel or the tract through which food travels in the body during digestion and absorption of food. Mouth, stomach, small intestine, and large intestine are the main organs of the alimentary canal. The breakdown of complex food molecules into smaller molecules occurs in the alimentary canal.
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Students have asked these similar questions
Match the following processes of the Digestive System to their specific description.
Match each item to a choice:
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Defecation
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Secretion
Mixing and propulsion
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the process by which food material are mixed together
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the process by which micro molecules from the process
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the chemical and mechanical process of degrading food
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the act of taking something (food, medicine, liquid,
poison etc.) into the body through the mouth.
the process by which undigested food particle are
expelled out of the body.
the process by which chemical enzymes are secreted by
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Identify the organs of the alimentary canal from the mouth to the anus and briefly state their function?
Discuss the roles of the liver, pancreas, and gallbladder in digestion?
Why is it important that chyme from the stomach is delivered to the small intestine slowly and in smallamounts?Why does the pancreas secrete some enzymes in their inactive forms, and where are these enzymes activated?
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Chapter 18 Solutions
Human Physiology
Ch. 18 - Prob. 1aCPCh. 18 - Describe the structure and function of the mucosa,...Ch. 18 - Prob. 2bCPCh. 18 - Describe the structure and function of the lower...Ch. 18 - Prob. 3bCPCh. 18 - Prob. 4aCPCh. 18 - Explain how peptic ulcers are produced and why...Ch. 18 - Explain how gastrin and vagus nerve stimulation...Ch. 18 - Describe the adaptations of the small intestine...Ch. 18 - Prob. 6CP
Ch. 18 - Prob. 7CPCh. 18 - Prob. 8aCPCh. 18 - Prob. 8bCPCh. 18 - Prob. 9CPCh. 18 - Prob. 10aCPCh. 18 - Prob. 10bCPCh. 18 - Prob. 10cCPCh. 18 - Prob. 11aCPCh. 18 - Prob. 11bCPCh. 18 - Prob. 12CPCh. 18 - Prob. 13aCPCh. 18 - Describe the mechanisms involved in the intestinal...Ch. 18 - Prob. 14CPCh. 18 - Prob. 15CPCh. 18 - Prob. 16aCPCh. 18 - List each enzyme involved in protein digestion....Ch. 18 - Describe how bile aids both the digestion and...Ch. 18 - Trace the pathway and fate of a molecule of...Ch. 18 - Prob. 17cCPCh. 18 - Which of these statements about intrinsic factor...Ch. 18 - Prob. 2RACh. 18 - Which of these statements about gastric secretion...Ch. 18 - Prob. 4RACh. 18 - Which of these statements about trypsin is...Ch. 18 - Prob. 6RACh. 18 - Prob. 7RACh. 18 - The first organ to receive the blood-borne...Ch. 18 - Prob. 9RACh. 18 - Prob. 10RACh. 18 - Prob. 11RACh. 18 - Which of these statements about vitamin is...Ch. 18 - Which of these statements about starch digestion...Ch. 18 - Prob. 14RACh. 18 - Which of these statements about contraction of...Ch. 18 - Prob. 16RACh. 18 - Prob. 17RACh. 18 - Which of the following statements about the liver...Ch. 18 - Prob. 19RACh. 18 - Prob. 20RACh. 18 - Prob. 21RACh. 18 - Describe the mechanisms that are believed to...Ch. 18 - Prob. 23RACh. 18 - Explain how jaundice is produced when (a) the...Ch. 18 - Prob. 25RACh. 18 - Distinguish between chylomicrons, very-low-density...Ch. 18 - Prob. 27RACh. 18 - Trace the course of blood flow through the liver...Ch. 18 - Prob. 29RACh. 18 - Describe the reflexes controlling the stomach,...Ch. 18 - Prob. 31RACh. 18 - Prob. 32RACh. 18 - Prob. 33RACh. 18 - Prob. 34RACh. 18 - Prob. 35RACh. 18 - Prob. 36RACh. 18 - Prob. 37RACh. 18 - Prob. 38RACh. 18 - Prob. 39RACh. 18 - Prob. 40RACh. 18 - Refer to figure 18. I 4 to answer the following...Ch. 18 - Prob. 42RACh. 18 - Prob. 43RA
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Similar questions
- Match the digestive system parts and functions.arrow_forwardExplain the differences between the digestion roles of the small and large intestines. Does the appendix also have a digestive function?arrow_forwardFigure 34.19 Which of the following statements about digestive processes is true? Amylase, maltaseT and lactase in the mouth digest carbohydrates. Trypsin and lipase in the stomach digest protein. Bile emulsifies lipids in the small intestine. No food is absorbed until the small intestine.arrow_forward
- Figure 34.11 Which of the following statements about the digestive system is false? Chyme is a mixture of food and digestive juices that is produced in the stomach. Food enters the large intestine before the small intestine. In the small intestine, chyme mixes with bile, which emulsifies fats. The stomach is separated from the small intestine by the pylloric sphincter.arrow_forwardWhat are the main functions of the stomach? What roles do enzymes and hormones play?arrow_forwardList the exact order of flow of Unabsorbed food starting at the mouth and ending in the anus. List all regions, sphincters, and valves through which the unabsorbed food passes through. Separate the Alimentary canal from accessory digestive organs but list the accessory organs.arrow_forward
- Identify the pathway of food through the alimentary canalarrow_forwardDefine the following processes happening in the digestive system: Ingestion Mechanical Digestion Chemical Digestion Motility: Peristalsis Motility: Segmentation Secretion Absorption Reabsorption (and Compaction) Defecationarrow_forwardDescribe the processing of a bite of Big Mac by the digestive system beginning with ingestion and ending with elimination of undigestible materials. Include discussion of mechanical and chemical processing and nutrient absorption along the pathway to include enzymes utilized and nutrient types digested at different structures along the pathway as well as the role of the accessory organs .arrow_forward
- Describe the peristaltic reflex (including sensory nerves in the intestinal wall, motor that provides contraction behind and relaxation in front of the food, which causes the contents to be pushed forward)arrow_forwardExplain the basics of how bowel movements occur, i.e. smooth muscles that contract and relax, that the contractions partly push the food forward, partly mix the food so that enzymes etc. are better able to break it down. Describe the role that sphincters play in regulating how fast the content is advanced.arrow_forwardWhat happens when you eat a sandwich with spotted sausage? Describe in detail how and where it is broken down, and where and in what form the various nutrients are taken up. Feel free to draw a picture that shows the sandwich's path through the gastrointestinal tract and what happens where. Also explain why gastrointestinal movements are important.arrow_forward
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