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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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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Put the flow of blood through the heart in the right order starting with vena cava.
Vena cava
Right atrium
Aortal semilunar valve
Pulmonary veins
Right AV valve
Left Ventricle
Pulmonary arteries
Lungs
Left atrium
Aorta
Mitral valve
Pulmonary semilunar valve
Right ventricle
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
A 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.
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_forwardWrite the following structures into sequence as a drop of blood would pass them on the double circuit of a mammalian system. aorta to systemic arteries and arterioles aortic semilunar valve inferior and superior vena cavae left atrioventricular valve (also called biscupid or mitral valve) left atrium left ventricle pulmonary capillaries to venules pulmonary trunk/arteries to arterioles pulmonary semilunar valve pulmonary veins right atrioventricular valve (also called tricuspid valve) right atrium right ventricle systemic capillaries to venules and veinsarrow_forwardA heartbeat starts when autorhythmic cells in the 1 [ Select ] (located in the right atrium) create an action potential (electric signal). From there, the signal passes along the internodal pathway to the 2 [ Select] causing the atria to contract. After a slight pause, the signal travels to the 3 [ Select ] , which divides into left and right bundle branches and carries the signal down through the 4 [ Select ] to the apex of the heart. At that point, specialized 5 [ Select ] carry the signal to individual cardiac muscle cells and the 6 [ Select ] contract.arrow_forward
- Diastole and systole are terms that address the contracting and relaxing of the heart. Which of the following statements about diastolic and systolic blood pressure are true? Select all that apply. The diastolic blood pressure reading is the second number that is read and it's a measurement of the pressure of the arteries as the heart contracts and beats. The systolic blood pressure reading is the first number that is read and it's a measurement of the pressure of the arteries as the heart contracts and beats. The systolic blood pressure reading is the first number that is read and it's a measurement of the pressure in the arteries when the heart rests between beats. Systole refers to when the heart contracts and blood flows from atria into ventricles. The diastolic blood pressure reading is the second number that is read and it's a measurement of the pressure in the arteries when the heart rests between beats Diastole refers to when the heart contracts and the blood flows from the…arrow_forwardpapillary muscle chordae tendineae trabeculae carneae pectinate muscle are internal ridges on the surface of the atria that strengthen the right atrium and auricle walls while contributing minimal additional bulk. are ridges on the ventricular walls that prevent the ventricle walls from adhering during systole. are string-like structures that connect valve cusps to finger-like projections called Together, these structures brace valve cusp doors to prevent blood backflow.arrow_forwardWhich of the following is not correct regarding the heart? ventricular fibrillation occurs from autorhythmic cells firing out of sequence the majority of cells are contractile, very few are autorythmic the atria and the ventricles contract at the same time both ventricles contract almost at the same timearrow_forward
- 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 continuouslyarrow_forwardHeartbeats can be heard using a stethoscope and correlate with vibrations associated with the contraction of the heart chambers. vibrations associated with the opening of the heart chambers. vibrations associated with the opening of the heart valves. vibrations associated with the closing of the heart valves.arrow_forwardThe fibrous skeleton of the heart functions to: O provide an anchor for the heart valves all of these choice are correct maintain the shape of the heart O provide electrical insulation between the atria and ventriclesarrow_forward
- Describe the flow of blood through the heart from where it returns to the heart through where it leaves to travel to body tissues. Make sure to include all appropriate anatomical structures. Don't copy from Googlearrow_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 ventricle the left ventricle to the left atriumarrow_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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