Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 23, Problem 7ILQ
Watch this video (http://openstaxcollege.org/l/liver) to see the structure of the liver and how this structure supports the functions of the liver, including the processing of nutrients, toxins, and wastes. At rest, about 1500 mL of blood per minute flow through the liver. What percentage of this blood flow comes from the hepatic portal system?
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Watch this video (http://openstaxcollege.org/l/liver) tosee the structure of the liver and how this structure supportsthe functions of the liver, including the processing ofnutrients, toxins, and wastes. At rest, about 1500 mL ofblood per minute flow through the liver. What percentageof this blood flow comes from the hepatic portal system?
The hepatic portal system drains blood from the digestive tract to the spleen, gallbladder, and pancreas. What constituents would you expect to be in the blood that enters the liver and what might the liver do with what it receives?
The "portal triad" found at each corner of a
liver lobule consists of the following 3
structures (choose 3 options):
a branch of the enteric nervous system
O a lymph node
a branch of the hepatic artery
а capillary
O a branch of the hepatic portal vein
a bile duct
Chapter 23 Solutions
Anatomy & Physiology
Ch. 23 - By clicking on this link...Ch. 23 - Visit this site...Ch. 23 - Watch this animation...Ch. 23 - Watch this animation...Ch. 23 - Watch this animation...Ch. 23 - By watching this animation...Ch. 23 - Watch this video...Ch. 23 - Which of these organs is not considered an...Ch. 23 - Which of the following organs is supported by a...Ch. 23 - Which of the following membranes covers the...
Ch. 23 - Which of these processes occurs in the mouth?...Ch. 23 - Which of these processes occurs throughout most of...Ch. 23 - Which of the following stimuli activates sensors...Ch. 23 - Which of these statements about reflexes in the GI...Ch. 23 - Which of these ingredients in saliva is...Ch. 23 - Which of these statements about the pharynx is...Ch. 23 - Which structure is located where the esophagus...Ch. 23 - Which phase of deglutition involves contraction of...Ch. 23 - Which of these cells secrete hormones? parietal...Ch. 23 - Where does the majority of chemical digestion in...Ch. 23 - During gastric emptying, chyme is released into...Ch. 23 - Parietal cells secrete ________. gastrin...Ch. 23 - In which pail of the alimentary canal does most...Ch. 23 - Which of these is most associated with villi?...Ch. 23 - What is the roLe of the small intestines MALT?...Ch. 23 - Which part of the large intestine attaches to the...Ch. 23 - Which of these statements about bile is true?...Ch. 23 - Pancreatic juice ________. deactivates bile. is...Ch. 23 - Where does the chemical digestion of starch begin?...Ch. 23 - Which of these is involved in the chemical...Ch. 23 - Where are most fat-digesting enzymes produced?...Ch. 23 - Which of these nutrients is absorbed mainly in the...Ch. 23 - Explain how the enteric nervous system supports...Ch. 23 - What layer of the alimentary canal tissue is...Ch. 23 - Offer a theory to explain why segmentation occurs...Ch. 23 - It has been several hours since you last ate....Ch. 23 - The composition of saliva varies from gland to...Ch. 23 - During a hockey game, the puck hits a player in...Ch. 23 - What prevents swallowed food from entering the...Ch. 23 - Explain the mechanism responsible for...Ch. 23 - Describe the three processes involved in the...Ch. 23 - Explain how the stomach is protected from self...Ch. 23 - Describe unique anatomical features that enable...Ch. 23 - Explain how nutrients absorbed in the small...Ch. 23 - Why is it important that chyme from the stomach is...Ch. 23 - Describe three of the differences between the...Ch. 23 - Why does the pancreas secrete some enzymes in...Ch. 23 - Describe the location of hepatocytes in the liver...Ch. 23 - Explain the role of bile salts and lecithin in the...Ch. 23 - How is vitamin B12 absorbed?
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- Explain the differences between the digestion roles of the small and large intestines. Does the appendix also have a digestive function?arrow_forwardDescribe the blood flow to the liver (both arterial and venous) and how it differs from what is typically seen in most organs.arrow_forwardThe stomach is able to distend a great deal as it receives food because of all of the following, except sympathetic stimulation decreases the tonus of the gastric smooth muscle. there is a great deal of loose tissue in the form of rugae. the gastric smooth muscle is very extensible. the smooth muscle of the stomach is very elastic.arrow_forward
- Label the imagearrow_forwardIn a person suffering from heartburn, the gastroesophageal opening is weakened and stomach acid can be forced from the stomachback into the esophagus. Explain why medications that slow stomach movements and emptying may worsen heartburn symptomsarrow_forwardExplain the location of hepatocytes in the liver and how this arrangement enhances their function.arrow_forward
- Which of the following correctly describe the flow of blood through the classical liver lobule and beyond? (More than one choice is correct.) (a) portal venule to sinusoids to central vein to hepatic vein to inferior vena cava, (b) porta hepatis to hepatic vein to portal venule, (c) portal venule to central vein to hepatic vein to sinusoids, (d) portal arteriole to sinusoids to central vein to hepatic vein.arrow_forwardthere are about 1 million lobules in the liver and each is surrounded by ____ and ____arrow_forwardHepatic macrophages occur in blood-filledspaces of the liver called-------------------arrow_forward
- Discuss the significance of hepatic portal system.arrow_forwardCertain drugs cannot be taken by mouth because the entire dose of the drug is destroyed in the liver before it ever reaches the general circulation. Explain why the same drugs can be given by injection, either intravenously or intramuscularly.arrow_forwardMention and explain four of the major functions of the liver.arrow_forward
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