BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 48, Problem 4U
Which of the following statements is not true?
a. Only arteries carry oxygenated blood.
b. Both arteries and veins have a layer of smooth muscle.
c. Both arteries and veins branch out into capillary beds.
d. Precapillary sphincters regulate blood flow through capillaries.
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Which of the following is the best description of what happens in capillaries?
A. Capillaries are surrounded by thicker smooth muscle moving blood cells to exchange nutrients and oxygen.
B. Capillaries connect minor veins to major veins returning blood to the heart.
C. Capillaries are the location where oxygen, carbon dioxide, and nutrients are exchanged with tissues at the cellular level.
D. Capillaries are the site where blood mixes with interstitial fluid to allow for gas and nutrient exchange.
Which of the following statements is false?a. Only arteries carry oxygenated blood.b. Both arteries and veins have a layer of smooth muscle.c. Capillary beds lie between arteries and veins.d. Sphincters regulate the flow of blood through capillaries.
Which of the following is not a characteristic of a capillary?
a. Fenestrated capillaries allow for larger amounts of materials to be exchanged.
b. Sinusoid capillaries are the main type of capillary around the brain.
c. Capillaries often are arranged in a capillary bed that is supplied by an arteriole.
d. The capillary wall consists of an endothelium and a basement membrane only—there is no subendothelial layer.
Chapter 48 Solutions
BIOLOGY
Ch. 48.1 - Prob. 1LOCh. 48.1 - Prob. 2LOCh. 48.2 - Prob. 1LOCh. 48.2 - Prob. 2LOCh. 48.2 - Prob. 3LOCh. 48.3 - Prob. 1LOCh. 48.3 - Prob. 2LOCh. 48.4 - Prob. 1LOCh. 48.4 - Prob. 2LOCh. 48.5 - Prob. 1LO
Ch. 48.5 - Prob. 2LOCh. 48.5 - Prob. 3LOCh. 48.5 - Prob. 4LOCh. 48 - Prob. 1DACh. 48 - Prob. 1IQCh. 48 - Prob. 2IQCh. 48 - An ECG measures a. changes in electrical potential...Ch. 48 - Systole is vitally important to heart function and...Ch. 48 - Which of the following is the correct sequence of...Ch. 48 - Which of the following statements is not true? a....Ch. 48 - Prob. 5UCh. 48 - Prob. 6UCh. 48 - When a sphygmomanometer is used, a. blood pulses...Ch. 48 - Prob. 8UCh. 48 - In vertebrate hearts, atria contract from the top,...Ch. 48 - Prob. 2ACh. 48 - The difference between the amphibian and mammal...Ch. 48 - Prob. 4ACh. 48 - Humans have a number of mechanisms that help to...Ch. 48 - Prob. 2SCh. 48 - Is the evolution of the four-chambered heart...Ch. 48 - Prob. 4S
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