Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Question
Chapter 18, Problem 8MC
Summary Introduction
To determine:
The baroreceptors in the carotid sinus and aortic arch are sensitive to
(a) a decrease in CO2,
(b) changes in arterial pressure,
(c) a decrease in O2,
(d) all of these.
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Chapter 18 Solutions
Anatomy & Physiology (6th Edition)
Ch. 18.1 - Which branch of the autonomic nervous system...Ch. 18.1 - When vascular smooth muscle contracts, what...Ch. 18.2 - Name the type of artery that matches each...Ch. 18.3 - Prob. 4CYUCh. 18.4 - Prob. 5CYUCh. 18.4 - In the systemic circuit, which contains more...Ch. 18.5 - Prob. 7CYUCh. 18.6 - List three factors that determine resistance in a...Ch. 18.6 - Suppose vasoconstriction decreases the diameter of...Ch. 18.7 - Prob. 10CYU
Ch. 18.8 - Prob. 11CYUCh. 18.8 - The kidneys play an important role in maintaining...Ch. 18.8 - Your neighbor, Bob, calls you because he thinks he...Ch. 18.8 - Prob. 14CYUCh. 18.9 - Suppose you are in a bicycle race. What happens to...Ch. 18.9 - If many arterioles in your body dilated at once,...Ch. 18.10 - Prob. 17CYUCh. 18.11 - Prob. 18CYUCh. 18.11 - Prob. 19CYUCh. 18.11 - Prob. 20CYUCh. 18.11 - You are assessing the circulation in the leg of a...Ch. 18.11 - In what important way does the area drained by the...Ch. 18.11 - Prob. 23CYUCh. 18.11 - Prob. 24CYUCh. 18.11 - Name the leg veins that often become varicosed.Ch. 18 - Which statement does not accurately describe...Ch. 18 - Smooth muscle in the blood vessel wall (a) is...Ch. 18 - Peripheral resistance (a) is inversely...Ch. 18 - Which of the following can lead to decreased...Ch. 18 - Prob. 5MCCh. 18 - Prob. 6MCCh. 18 - The structure of a capillary wall differs from...Ch. 18 - Prob. 8MCCh. 18 - The myocardium receives its blood supply directly...Ch. 18 - Blood flow in the capillaries is steady despite...Ch. 18 - Prob. 11MCCh. 18 - Tracing the blood from the heart to the right...Ch. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - How is the anatomy of capillaries and capillary...Ch. 18 - Prob. 16SAQCh. 18 - Write an equation showing the relationship between...Ch. 18 - Prob. 18SAQCh. 18 - Describe the neural mechanisms responsible for...Ch. 18 - Explain the reasons for the observed changes in...Ch. 18 - Prob. 21SAQCh. 18 - Prob. 22SAQCh. 18 - How are nutrients, wastes, and respiratory gases...Ch. 18 - Prob. 24SAQCh. 18 - Physiologists often consider capillaries and...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...
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- (a) Name the type of blood vessel labelled (i) C. (ii) D. (b) In which direction does blood in vessel A travel? (c) Which of the four blood vessels contains the most oxygen? (d) What happens to the amount of oxygen in the blood as it passes through the body organs? (e) What is the chamber of the heart labelled X? ·arrow_forwardMean arterial pressure is determined by (A) adding the systolic pressure to diastolic pressure and dividing by two (B) subtracting diastolic pressure from systolic pressure and multiplying by two (C) adding 1/3 of the pulse pressure to diastolic pressure (D) adding 1/3 of pulse pressure to systolic pressure (E) adding systolic and diastolic pressure together / dividing by two / adding 1/3 of the pulse pressurearrow_forwardThe following sequence traces the flow of arterial blood to the left parietal and temporal lobes of the brain. Tell which artery is missing: Blood leaves the heart and passes through the aorta, the left common carotid artery, and the middle cerebral artery. (a) vertebral, (b) brachiocephalic, (c) internal carotid, (d) basilar.arrow_forward
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- If blood pressure was to drop, how is the signal transmitted to the central nervous system? a) The baroreceptors decrease the generation of action potentials below their normal level. b) The glassopharyngeal nerve increases the transmission of action potentials, while the vagus nerve does not. c) The baroreceptors increases the generation of action potentials past their normal level. d) The glassopharyngeal nerve decreases the transmission of action potentials, while the vagus nerve does not.arrow_forwardyou are using a sphygmomanometer while listening to your patient's heart with a stethoscope. You heard the first tapping sound at 125mm Hg and then the sounds stopped at 83mm Hg. Calculate the mean arterial pressure. (A) 42 (B) 14 (C) 124 (D) 97 (E) 104arrow_forward1)cardiac output is increased by A) more sympathetic stimulation only B) more sympathetic stimulation, increased end-diastolic volume, and increased stroke volume c). increased end- diastolic volume only D) increased stoke volume only E) increased end-diastolic volume and more sympathetic stimulationarrow_forward
- Elevated levels of the hormones ADH and angiotensin II will produce (a) increased peripheral vasodilation. (b) increased peripheral vasoconstriction. (c) increased peripheral blood flow. (d) increased venous return.arrow_forwardIdentify the correct order of the blood flow pathway? (A) the pulmonary arteries carry oxygenated blood away from the pulmonary trunk (B) the left ventricle pushes blood through the aortic valve (C) the tricuspid valve takes blood from the left atrium to the left ventricle (D)superior vena cava, opening of coronary sinus, and inferior vena cava take blood to the left atriumarrow_forwardBlood pressure can be significantly affected by (a) cardiac output (b) peripheral resistance (c) blood volume (d) a, b, and c (e) a and b onlyarrow_forward
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