ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 20, Problem 12RAC
The greatest amount of ventricular filling occurs during
a. the first one-third of diastole.
b. the middle one-third of diastole.
c. the last one-third of diastole.
d. ventricular systole.
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The greatest amount of ventricular filling occurs duringa. the first one-third of diastole.b. the middle one-third of diastole.c. the last one-third of diastole.d. ventricular systole.
An ECG measures
a. changes in electrical potential during the cardiac cycle.
b. Ca2+ concentration of the ventricles in diastole.
c. the force of contraction of the atria during systole.
d. the volume of blood being pumped during the contraction cycle.
Which of the following is true of the EKG?
A. Depolarization of the atria cannot be seen on the EKG
B. Repolarization of the atria cannot be seen on the EKG.
C. Depolorization of the ventricles cannot be seen on the EKG.
D. Repolorazition of the ventricles cannot be seen on the EKG.
Chapter 20 Solutions
ANAT.+PHYSIO.2-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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- When 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_forwardThe 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.arrow_forwardAll 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.arrow_forward
- Within the T-P interval of the EKG... a. The 2nd heart sound is heard b. the semilunar valves are open c. Ventricular pressure is higher than atrial pressure d. Ventricular cardiomyocytes are relaxed e. L-type calcium current is dominant in the ventricular cardiomyocytesarrow_forwardDuring which of the following periods are the large elastic arteries distributing blood to smaller arteries downstream, and aortic BP is slowly falling? a. Ventricular systole b. Atrial systole c. Ventricular diastole d. Atrial diastolearrow_forwardThe onset of Ventrieular diastole is associated with: A. the closing of the aortiC valve B. the ejection of blood from the ventricles C. the opening of the atrio-ventricular (AV) valves D. the first heart soundarrow_forward
- Identify the TRUE statement (s). There may be several correct answers. A. An increased cardiac output is reflected in an elevated diastolic pressure.B. An increased cardiac output is reflected in a decreased diastolic pressure.C. An increase in the force of contraction produces an elevated systolic pressure.D. An increase in the force or ventricular contraction produces a decreased diastolic pressure.arrow_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_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_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_forwardThe “lubb” sound (first heart sound) is caused by thea. closing of the AV valves.b. closing of the semilunar valves.c. blood rushing out of the ventricles.d. filling of the ventricles.e. ventricular contraction.arrow_forwardJust after the dicrotic notch on the aortic pressure curvea. the pressure in the aorta is greater than the pressure in the left ventricle.b. the pressure in the left ventricle is greater than the pressure in the aorta.c. the pressure in the left atrium is greater than the pressure in the leftventricle.d. the pressure in the left atrium is greater than the pressure in the aorta.e. blood pressure in the aorta is 0 mm Hg.arrow_forward
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