Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 7, Problem 6SQ
Summary Introduction
Introduction: The cardiovascular system, which is also known as circulatory system, allows the blood to flow throughout the body and transports nutrients, gases, and other important enzymes in and out of the cells. The cardiovascular system is composed of two components: heart and the blood vessels.
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Which of these is an incorrect statement concerning the heartbeat?a. The atria contract at the same time.b. The ventricles relax at the same time.c. The atrioventricular valves open at the same time.d. The semilunar valves open at the same time.
Which of the following statements is correct?
a. Arteries carry blood away from the heart and veins carry blood to the heart.
b. Arteries carry blood to the heart and veins carry blood away from the heart.
C. All arteries carry oxygen-rich blood and veins carry oxygen-poor blood.
d. Arteries carry oxygen-poor blood and veins carry oxygen-rich blood.
Blood flows directly from the left atrium to_____ . a. the aorta c. the right atrium b. the left ventricle d. the pulmonary arteries
Chapter 7 Solutions
Human Biology (MindTap Course List)
Ch. 7 - List the functions of the cardiovascular system.Ch. 7 - Define a heartbeat, giving the sequence of events...Ch. 7 - What is the difference between the systemic and...Ch. 7 - Prob. 4RQCh. 7 - Prob. 5RQCh. 7 - State the main functions of venules and veins....Ch. 7 - Label the hearts main parts in the diagram below.Ch. 7 - Cells obtain nutrients from and deposit waste into...Ch. 7 - The contraction phase of the heartbeat is ______;...Ch. 7 - Prob. 3SQ
Ch. 7 - In the systemic circuit, the hearts _______ half...Ch. 7 - After you eat, blood passing through the GI tract...Ch. 7 - Prob. 6SQCh. 7 - Prob. 7SQCh. 7 - Prob. 8SQCh. 7 - _____ contraction drives blood through the...Ch. 7 - Match the type of blood vessel with its major...Ch. 7 - Prob. 11SQCh. 7 - A patient suffering from hypertension may receive...Ch. 7 - Heavy smokers often develop abnormally high blood...Ch. 7 - Prob. 3CTCh. 7 - Several years ago the deaths of several airline...
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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_forwardWhich heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventriclearrow_forwardThe left ventricular wall of the heart is thicker than the right wall in order to ________. A accommodate a greater volume of blood B expand the thoracic cage during diastole C pump blood with greater pressure D pump blood through a smaller valvearrow_forward
- Select the correct one, Which of the following would not increase Cardiac Output? A. increase blood epinephrine concentration B. Increase Atrial Preload C. Increase Cardiac sarcoplasmic calcium concentration D. Increase Arterial Afterloadaarrow_forwardWhen is the blood pressure in the left ventricle greater than the blood pressure in the aorta? A during diastole B during systole C all of the time D neverarrow_forwardIf the left ventricle failed to pump blood effectively, blood would back up in the _____." A left atrium and pulmonary veins B aorta and other systemic arteries C right atrium and coronary sinus D right ventriclearrow_forward
- a. Only between cardiac cycles b. Ventricular diastole c. Ventricular systole d. Throughout the cardiac cyclearrow_forwardThe ascending aorta and pulmonary trunk develop from the embryonic:- a. bulbus cordis only. b. truncus arteriosus only. c. horns of the sinus venosus. d. conotruncus. e. ventriclearrow_forwardA major difference between arteries and veins is thata. arteries always carry oxygenated blood; veins never do.b. arteries carry blood away from the heart; veins return blood.c. only arteries have valves.d. veins feed blood into capillaries.arrow_forward
- a. Ventricular diastole b. Throughout the cardiac cycle c. Between cardiac cycles d. Ventricular systolearrow_forwardWhich of these events occurs during (ventricular) systole? A)Only the left ventricle contracts. B)The ventricles fill with blood. C)Both ventricles contract. D)The atria fill with bloodarrow_forwardFigure shows the conduction system of the heart that transmit the electrical impulses for the coordination of cardiac cycle. a) Referring to the Figure , which part of the heart's electrical conduction is known as the “pacemaker” of the heart? b)Explain how D controls atria and ventricles which causes ventricular systole.arrow_forward
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