ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303106
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 20, Problem 2RAC
Summary Introduction
Introduction:
The heart is the muscular organ that consists of four chambers. The right side consists of upper right atrium and lower right ventricle. In the same way, the left side of the heart consists of upper left atrium and lower left ventricle.
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The valve located between the right atrium and the right ventricle is thea. aortic semilunar valve. c. tricuspid valve.b. pulmonary semilunar valve. d. bicuspid (mitral) valve.
Obstruction of this vessel causes a more severe myocardial infarction in comparison to other vessels.
a. circumflex branch
b. right marginal vein
c. left coronary artery
d. anterior interventricular branch
All of the following occur when the ventricles contract except a. the AV valves close. b. blood is ejected into the aorta. c. the semilunar valves open. d. blood from the pulmonary trunk enters the atria.
Chapter 20 Solutions
ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
Ch. 20.1 - State the four functions of the heart.Ch. 20.2 - What is the approximate size and shape of the...Ch. 20.2 - Where is the heart located? How does this...Ch. 20.3 - Describe the parts of the pericardium and their...Ch. 20.3 - Describe the three layers of the heart wall, and...Ch. 20.3 - Name the chambers of the heart, and describe their...Ch. 20.3 - List the major blood vessels that enter and leave...Ch. 20.3 - Prob. 8AYPCh. 20.3 - Prob. 9AYPCh. 20.3 - Prob. 10AYP
Ch. 20.3 - Describe the openings of the right and left atria....Ch. 20.3 - Prob. 12AYPCh. 20.3 - Prob. 13AYPCh. 20.3 - Prob. 14AYPCh. 20.4 - Prob. 15AYPCh. 20.5 - Prob. 16AYPCh. 20.5 - Prob. 17AYPCh. 20.5 - Prob. 18AYPCh. 20.5 - Prob. 19AYPCh. 20.5 - Identify the parts of the conducting system of...Ch. 20.5 - Prob. 21AYPCh. 20.5 - Prob. 22AYPCh. 20.6 - Prob. 23AYPCh. 20.6 - Prob. 24AYPCh. 20.6 - Prob. 25AYPCh. 20.6 - Prob. 26AYPCh. 20.6 - What does an ECG measure? Nome the waves...Ch. 20.7 - Define systole and diastole.Ch. 20.7 - List the five periods of the cardiac cycle (see...Ch. 20.7 - Define isovolumetric. When does most ventricular...Ch. 20.7 - Prob. 31AYPCh. 20.7 - Prob. 32AYPCh. 20.7 - Prob. 33AYPCh. 20.8 - Prob. 34AYPCh. 20.8 - Explain the role of MAP in causing blood flow.Ch. 20.8 - Prob. 36AYPCh. 20.8 - Prob. 37AYPCh. 20.8 - Prob. 38AYPCh. 20.9 - Prob. 39AYPCh. 20.9 - Prob. 40AYPCh. 20.9 - Prob. 41AYPCh. 20.9 - Prob. 42AYPCh. 20.9 - Prob. 43AYPCh. 20.10 - Prob. 44AYPCh. 20.10 - Prob. 45AYPCh. 20.10 - What effect does an increase or a decrease...Ch. 20.10 - Prob. 47AYPCh. 20.11 - Prob. 48AYPCh. 20.11 - Prob. 49AYPCh. 20.11 - Prob. 50AYPCh. 20.11 - Prob. 51AYPCh. 20 - Which of these structures returns blood to the...Ch. 20 - Prob. 2RACCh. 20 - Prob. 3RACCh. 20 - Prob. 4RACCh. 20 - Prob. 5RACCh. 20 - Prob. 6RACCh. 20 - Action potentials pass from one cardiac muscle...Ch. 20 - During the transmission of action potentials...Ch. 20 - Given these structures of the conducting system of...Ch. 20 - Prob. 10RACCh. 20 - Prob. 11RACCh. 20 - The greatest amount of ventricular filling occurs...Ch. 20 - Prob. 13RACCh. 20 - Prob. 14RACCh. 20 - Prob. 15RACCh. 20 - Cardiac output is defined as blood pressure times...Ch. 20 - Pressure in the aorta is at its lowest a. at the...Ch. 20 - Prob. 18RACCh. 20 - Prob. 19RACCh. 20 - Prob. 20RACCh. 20 - Prob. 21RACCh. 20 - Increased parasympathetic stimulation of the heart...Ch. 20 - Prob. 23RACCh. 20 - Prob. 24RACCh. 20 - Prob. 25RACCh. 20 - Prob. 1CTCh. 20 - In most tissues, peak blood flow occurs during...Ch. 20 - Prob. 3CTCh. 20 - Prob. 4CTCh. 20 - A patient has tachycardia. Would you recommended a...Ch. 20 - Prob. 6CTCh. 20 - A doctor lets you listen to a patient's heart with...Ch. 20 - Explain why it is sufficient to replace the...Ch. 20 - Prob. 9CTCh. 20 - Prob. 10CTCh. 20 - Prob. 11CT
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- Which heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventriclearrow_forwardWhen the ventricles contract, all of the following occur excepta. closing of the AV valves.b. blood ejecting into the pulmonary trunk and aorta.c. closing of the semilunar valves.d. opening of the semilunar valves.arrow_forwardWhich heart valve(s) is/are open during the Ejection phase of the cardiac cycle? A. Tricuspid B. Aortic semilunar valve C. Bicuspid D. Both B & Carrow_forward
- Which valve separates the left atrium from the leftventricle?a. mitralb. tricuspidc. pulmonary d. aorticarrow_forwardTo get from the right atrium to the right ventricle, blood flows througha. the pulmonary valve.b. the tricuspid valve.c. the bicuspid valve.d. the aortic valve.e. the mitral valve.arrow_forwardWhich of the following structures provides the anchoring site for the valves of the heart and prevents the conduction of electrophysiologic impulses form the atria to the ventricles? A. Chordae Tendineae B. Fibrous Pericardium C. Fibrous Skeleton of the heart D. MyocardiumE. Sinus Venosumarrow_forward
- Which of the following conditions might result in the back flow of blood through a weakened mitral valve? Group of answer choices a. High pressure in the left ventricle, low pressure in the left atrium b. High pressure in the left atrium, low pressure in the left ventricle c. High pressure in the right ventricle, low pressure in the right atrium d. High pressure in the right atrium, low pressure in the right ventriclearrow_forwardKorotkoff sounds indicate: A. Regurgitation from the ventricle into the atrium through a faulty mitral valve. B. Backflow through the tricuspid valve. C. Turbulence in a malformed aortic arch. D. Systolic and diastolic viscosity. E. Opening and closing of an artery.arrow_forwardThe valves which allow blood to flow from the ventricles into the arteries and not in the opposite direction are: A Semilunar valve and tricuspid valve B Bicuspid and tricuspid valve C A.V valve (Atrioventricular valve) and semilunar valve D Aortic valve and mitral valvearrow_forward
- The following is correct about valvular structures A. The AV valves are the structures that divide the upper atria from the lower ventricles B. The pulmonic vale separates the left ventricle from the system circulation C. The tricuspid valve separates the left atrium from the left ventricle D. The mitral valve separates the right atrium from the right ventricle Choose the correct answerarrow_forwardWhile the semilunar valves are open during a normal cardiac cycle, thepressure in the left ventricle isa. higher than the pressure in the aorta.b. lower than the pressure in the aorta.c. the same as the pressure in the left atrium.d. lower than the pressure in the left atrium.arrow_forwardThe systemic circulation ends at the: A.right atrium B. right ventricle C. left atrium D. left ventricle The period of ejection: A. begins with the first heart sound and ends with the opening of the AV-valve. B. begins with the second heart sound and ends with the closing of the AV-valve. C. begins with the second heart sound and ends with the opening of the Aortic-valve. D. begins with the opening of the Aortic-valve and ends with the second heart sound. The arterial p02 is relatively low in an individual suffering from congestive heart failur because: A. hemoglobin is mis-shapen and can't bind adequate 02 B. pulmonary ventilation is compromised by the decrease in arterial pCO2 bronchoconstriction increases the total amount of air in the alveoli 02 has difficulty diffusing through the fluid trapped in the lung tissue he volume of blood ejected by the heart per minute is termed: stroke volume cardiac output end diastolic volume end systolic volume ght and Left Ventricular Pressures are…arrow_forward
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