Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 41, Problem 12TYK
Summary Introduction
Introduction: Digestion is defined as the breakdown of complex molecules into simple molecules by the involvement of chemical and mechanical process. Normally food when ingested undergoes several steps including ingestion, mechanical process of digestion, the chemical process of digestion, absorption, and defecation.
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The hepatic portal system collects blood from the __________ and then routes it to the __________.
A
liver; kidneys
B
liver; GI tract
C
GI tract; liver
D
kidneys; liver
Which of the following are components of the hepatic portal system?
Select one:
a. Azygos vein
b. Inferior mesenteric vein
c. Gastric vein
d. Both "Gastric vein" and "Inferior mesenteric vein" are correct.
e. Inferior vena cava
The antibiotic medication ticarcillin is not effective if given by mouth, because nearly the entire dose of the drug is destroyed by the hepatic portal system. However, this drug is effective when injected into the bloodstream. Explain
Chapter 41 Solutions
Biology - Study Guide
Ch. 41 - How can vegetarians obtain all the essential amino...Ch. 41 - Prob. 2IQCh. 41 - Prob. 3IQCh. 41 - Prob. 4IQCh. 41 - Prob. 5IQCh. 41 - For each of the following molecules, describe...Ch. 41 - Prob. 7IQCh. 41 - Prob. 8IQCh. 41 - Label the indicated structures in the following...Ch. 41 - Prob. 1TYKM
Ch. 41 - Prob. 2TYKMCh. 41 - Prob. 3TYKMCh. 41 - Prob. 4TYKMCh. 41 - Prob. 5TYKMCh. 41 - Prob. 6TYKMCh. 41 - Prob. 7TYKMCh. 41 - Prob. 8TYKMCh. 41 - Prob. 1TYKCh. 41 - Prob. 2TYKCh. 41 - Prob. 3TYKCh. 41 - Prob. 4TYKCh. 41 - Substrate feeders such as earthworms a. eat mostly...Ch. 41 - Prob. 6TYKCh. 41 - Why does salivary amylase not hydrolyze starch in...Ch. 41 - What is the advantage of mechanical digestion of...Ch. 41 - Prob. 9TYKCh. 41 - Prob. 10TYKCh. 41 - Prob. 11TYKCh. 41 - Prob. 12TYKCh. 41 - Prob. 13TYKCh. 41 - Prob. 14TYKCh. 41 - Prob. 15TYKCh. 41 - Prob. 16TYKCh. 41 - Prob. 17TYKCh. 41 - Prob. 18TYK
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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_forwardThe bile from the liver is delivered to the _______. a. stomach b. liver c. small intestine d. colonarrow_forwardThe portal vein brings blood from the intestines to the liver. Which statement is most likely true regarding the portal vein? A. It carries oxygenated blood at low pressure. B. It carries oxygenated blood at high pressure. C. It carries deoxygenated blood at low pressure. D. It carries deoxygenated blood at high pressure.arrow_forward
- What is the function of the hepatic portal vein?arrow_forwardThe 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?arrow_forwardAfter being absorbed into small intestine, the nutrient-loaded blood will first flow into? A. Muscle B. Colon C. Liver D. Heartarrow_forward
- Cirrhosis leads to scarring and increased hydrostatic pressure in the hepatic portal vein. Why do you think this increase in venous pressure causes increase in filtration of the hepatic capillaries which causes ascites (swollen and fluid-filled interstitial space of the abdomen).arrow_forwardHow do the portal veins divide the liver inferior and superiorly? Answer in essay format the draw the PAML segments separated into superior and inferior with portal veins.arrow_forwardWhat are two functions of the hepatic portal system?arrow_forward
- The most important collateral pathway in the portal vein hypertention is() A) retroperitoneal collateral vessels B) umbilical vein from the left portal vein to the epigastric venous system C) Esophageal and gastric venous plexus D) the hemorrhoidal venous plexus E) nonearrow_forwardDiscuss the significance of hepatic portal system.arrow_forwardIf cancer occurs in the esophagus , explain the ways in which the cancer passes into the larynx and the liver.arrow_forward
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