Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 36.3, Problem 1TYK
Summary Introduction
Introduction:
The atrium and ventricle present on the same side are separated by a septum called atrioventricular septum. The septum, however, has an opening that connects the atrium and ventricle of the same side and is called atrioventricular valve (AV valve).
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Which of the following statements is correct?
Group of answer choices
Veins carry blood away from the heart
A stenotic heart valve would restrict the flow of blood through the valve
Semilunar valves are located between the atria and the ventricles
The right ventricle pumps blood to the systemic circulation
The English physiologist William Harvey made all of the following circulatory discoveries except:
both pulmonary and systemic blood pressure comes from pumping of the heart
the function of valves in the veins is to direct blood flow back to the heart
blood in the arteries is under more pressure than is blood in the veins
arterial pressure is greatest during diastole and lowest during systole
the function of the vertebrate heart is to pump blood continuously
In the pause between the 2nd sound (dub) of one beat and the 1st sound (lub) of the following beat the ventricles are in __________ and the atrioventricular valves are _________.
A
Systole; open
B
Systole; closed
C
Diastole; open
D
Diastole; closed
Chapter 36 Solutions
Principles of Biology
Ch. 36.1 - Prob. 1CCCh. 36.1 - Prob. 1TYKCh. 36.1 - Prob. 2TYKCh. 36.2 - Prob. 1BCCh. 36.2 - Prob. 1TYKCh. 36.2 - Which is false? Platelets are nucleated cells that...Ch. 36.3 - Prob. 1CCCh. 36.3 - Prob. 2CCCh. 36.3 - Prob. 3CCCh. 36.3 - Prob. 1TYK
Ch. 36.3 - Prob. 2TYKCh. 36.4 - Prob. 1CCCh. 36.4 - Prob. 1TYKCh. 36.4 - Prob. 2CCCh. 36.4 - Prob. 2TYKCh. 36.5 - Prob. 1TYKCh. 36.5 - Prob. 2TYKCh. 36.6 - Prob. 1TYKCh. 36.7 - Prob. 1CCCh. 36.7 - Prob. 1BCCh. 36.7 - Prob. 2CCCh. 36.7 - Prob. 3CCCh. 36.7 - Prob. 1TYKCh. 36.7 - Which of the following statements is false? The...Ch. 36.8 - Prob. 1TYKCh. 36.8 - Prob. 2TYKCh. 36.9 - Prob. 1CCCh. 36.9 - Prob. 1TYKCh. 36.9 - Prob. 2TYKCh. 36.10 - Prob. 1BCCh. 36.10 - Prob. 1TYKCh. 36.11 - Prob. 1TYKCh. 36.11 - Prob. 2TYKCh. 36.11 - Prob. 3TYKCh. 36 - Prob. 1TYCh. 36 - Prob. 2TYCh. 36 - Prob. 3TYCh. 36 - Prob. 4TYCh. 36 - Considering blood flow through a closed...Ch. 36 - Prob. 6TYCh. 36 - Prob. 7TYCh. 36 - Prob. 8TYCh. 36 - Prob. 9TYCh. 36 - Prob. 10TYCh. 36 - Discuss the difference between closed and open...Ch. 36 - Prob. 2CCQCh. 36 - Prob. 3CCQCh. 36 - Prob. 1CBQCh. 36 - List the components of the mammalian respiratory...
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- _____ contraction drives blood through the systemic and pulmonary circuits; outside the heart, blood pressure is highest in the _____. a. Atrial; ventricles b. Atrial; atria c. Ventricular; arteries d. Ventricular; aortaarrow_forwardIn the systemic circuit, the hearts _______ half pumps blood to all body regions; then blood flows to the heart. a. left; deoxygenated; oxygenated b. right; deoxygenated; oxygenated c. left; oxygenated; deoxygenated d. right; oxygenated; deoxygenatedarrow_forwardFigure 16.10 Which of the following statements about the circulatory system is false? a. Blood in the pulmonary vein is deoxygenated. b. Blood in the inferior vena cava is deoxygenated. c. Blood in the pulmonary artery is deoxygenated. d. Blood in the aorta is oxygenated.arrow_forward
- Figure 40.10 Which of the following statements about the circulatory system is false? Blood in the pulmonary vein is deoxygenated. Blood in the inferior vena cava is deoxygenated. Blood in the pulmonary artery is deoxygenated. Blood in the aorta is oxygenated.arrow_forwardWhich heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventriclearrow_forwardWhat happens when the pressure in the ventricles becomes lower than the pressure in the atria? the first heart sound occurs the semilunar valves open the atrioventricular valves open the semilunar valves closearrow_forward
- Which statement below best explains why valves are necessary in the veins but not in the arteries? Venous valves prevent the backflow of blood into the ventricles. Blood flows in both directions through the arteries, but in the veins blood must flow in only one direction. Valves are found in arteries, not in veins. Blood in the arteries is moved forward by the pumping of the heart, but the veins feel very little of this forward push.arrow_forwardA key role of the atrioventricular node is to act as a barrier to prevent the electrical impulse in the atria from reaching the ventricles. slow down the conduction of the electrical impulse as it passes from the atria to the ventricles. act as the pacemaker of the heart, by generating electrical signals in the right atrium. speed up the conduction of the electrical impulse as it passes from the atria to the ventricles. block backflow of blood from the aorta into the right ventricle.arrow_forwardDuring contraction of heart, what prevents backflow of blood?a) Thin walls of atriab) Thick muscular walls of ventriclesc) Valves in heartd) All of the abovearrow_forward
- The heart is made up of___________ chambers each that serve a specific purpose. The ______________ receive the blood first and are separated from the ventricles via _______________ to prevent backflow of blood.arrow_forwardThe upper chambers of the heart are the: A) capillariesB) atriumsC) aortasD) ventriclesarrow_forwardThe Greek anatomist Erasistratus, originally from Ceos, identified the correct function of the right atrioventricular valve of the human heart, which was to prevent backward flow of blood from: the right ventricle to the right atrium the right ventricle to the left ventricle the right ventricle to the left atrium the left ventricle to the right ventriclearrow_forward
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