WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
5th Edition
ISBN: 9781319516116
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 22, Problem 2MC
Summary Introduction
Introduction:
Blood pressure reduces with increasing distance from the heart.
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Which of the following characteristics is unique to capillaries and not to other blood vessels?
A.
have low blood pressure
B.
have high blood pressure
C.
exchange substances (ions, small molecules and water) between blood and tissues
D.
carry oxygen and carbon dioxide
E.
connect to the heart and lungs
When comparing veins and arteries of the same diameter, which of the following statements is not true?
Select one:
a. Veins have fewer smooth muscle fibers.
b. Veins have a larger lumen.
c. Veins have more elastic tissue.
d. Veins have valves.
e. Veins have thinner walls.
Which of the following best describes the primary role of resistance vessels?
Group of answer choices
a.Providing nutrient supply to the walls of larger vessels
b. They regulate arterial blood pressure and blood flow within the organs.
c. Ensuring blood storage during periods of low cardiac output
d. Directing blood flow to specific organs based on demand
Chapter 22 Solutions
WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
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- Contraction of _______ drives the flow of blood through the aorta and pulmonary arteries. a. atria b. veins c. arterioles d. Ventriclesarrow_forwardThe process of recording a picture of blood vessels is called ____________________.arrow_forwardA patient suffering from hypertension may receive drugs that decrease the hearts output, dilate arterioles, or increase urine production. In each case, how would the drug treatment help relieve hypertension?arrow_forward
- Several years ago the deaths of several airline travelers led to warnings about economy-class syndrome. The idea is that economy-class passengers dont have as much leg room as passengers in more expensive seats, so they are more likely to sit essentially motionless for long periods on flightsconditions that may allow blood to pool and clots to form in the legs. This condition is called deep-vein thrombosis, or DVT. Given what you know about blood flow in the veins, explain why periodically getting up and moving around in the planes cabin during a long flight may lower the risk that a clot will form.arrow_forwardWhich of the following is true when comparing arteries and veins? A Arteries are less muscular than veins. B Arteries have valves; veins do not. C "At any given time, there is more blood present in arteries than in veins." D Arteries carry blood away from the heart; veins carry blood to the heart.arrow_forwardWhich of the following statements is true?a. The longer the vessel, the lower the resistanceand the greater the flow.b. As blood volume decreases, blood pressure andblood flow also decrease.c. Increased viscosity increases blood flow.d. All of the above are truearrow_forward
- Mark the following statements as true or false. If a statement is false, correct it to make a true statement a. Arteries are the exchange vessels of the cardiovascular system. b. The tunica intima is composed of a sheet of endothelium, connective tissue, and the internal elastic lamina. c. The tunica media consists of smooth muscle cells innervated by vasomotor nerves. d. Muscular arteries control blood flow at the tissue level. e. Veins have smaller lumens, more elastic fibers, and more smooth muscle than arteries.arrow_forwardWhich 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.arrow_forwarddescribe one following realtionship between anatomy and physiology a. related the structure of a red blood cell to the function of a red blood cell in as many ways you can b. choose one chamber of heart and relate the structure of this chamber to the function of this chamber . or c. choose one type of blood vessel & relate the structure of this vessel to function of this vessel . write about antomy and physiologyarrow_forward
- Which of the following is a result of their condition?arrow_forwardA blood vessel adapted to withstand great fluctuations in blood pressure would be expected to have:- a. an elastic tunica media. b. a thick tunica interna. c. one-way valves. d. a flexible endothelium. e. a rigid tunica mediaarrow_forwardWhich of the following can be included in the description of a vein? A. Creamy white color B. Solid structure C. Generally empty of blood D. Collapses when incisedarrow_forward
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The Cardiovascular System: An Overview; Author: Strong Medicine;https://www.youtube.com/watch?v=Wu18mpI_62s;License: Standard youtube license