SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 20, Problem 14RAC
Summary Introduction
Introduction:
The pressure produced by the blood on the blood vessels (arteries) is termed as blood pressure. It helps in the flow of blood inside the arteries. There are two types of blood pressure. These are systolic blood pressure and diastolic blood pressure.
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The heart is resting during
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ventricular systole.
the ejection period.
ventricular diastole.
atrial systole.
What keeps the atrioventricular (AV) valves from being pushed open as the ventricles contract?
Pressure of blood pushing against the valves.
Contraction of the atria.
Closure of the semilunar valves.
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produces more pressure when it contracts.
pumps to the systemic system.
contains oxygenated blood.
has a thicker wall.
pumps a greater volume.
Chapter 20 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
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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- Clusters of neurons in the medulla oblongata that regulate blood pressure are known collectively as ________. baroreceptors angioreceptors the cardiomotor mechanism the cardiovascular centerarrow_forwardFigure 40.11 Which of the following statements about the heart is false? The mitral valve separates the left ventricle from the left atrium. Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves. The mitral valve is an atrioventricular valve.arrow_forwardduring the four phases of the cardiac cycle. Which valves open/close during these phases? Ventricular Isovolumetric Ventricular Isovolumetric Filling Contraction Ejection Relaxation Blood Flow Low Ventricular Volume Ventricular Pressure Aortic Pressure Which valves open/close in the beginning ofarrow_forward
- In an ECG, which of the following represents the repolarization of the ventricles? Group of answer choices T wave P wave The repolarization of the ventricles does not have a distinct wave, it is hidden in the QRS complex QRS complexarrow_forwardpreload afterload contractility is the amount of tension in ventricular myocardium immediately before it begins to contract. It is elevated in exercise because so much blood is flowing into the chamber quickly. The chamber walls stretch, which encourages increased is the pressure in the aorta and pulmonary trunk. When it is high, the ventricles must work harder to eject blood.arrow_forwardWhich of the following is true regarding the P wave? Group of answer choices It represents the depolarization of the ventricles It represents the depolarization of the SA node It represents the depolarization of the atria It is the largest wave in an ECG complexarrow_forward
- Assuming that the cardiac cycle begins at the end of diastole put the following ventricular phases in the correct order of occurrence. Isovolumetric relaxation phase Isovolumetric contraction phase Ejection phase Filling phase > >arrow_forwardWhich of the following statements best describes systolic blood pressure? Systolic blood pressure depends upon the force of the heart contractions - the stronger the contractions the higher the systolic pressure will be. Systolic blood pressure depends on how tightly the cuff of the sphygmomanometer is tightened. Systolic blood pressure depends upon the resistance of the blood vessels - the greater the resistance to blood flow the higher the systolic pressure will be. Systolic blood pressure depends upon the force and frequency of the heart contractions - the stronger and more frequent the contractions the higher the systolic pressure will be.arrow_forwardWhich structure is responsible for sending the electrical excitation from the atria towards the ventricles. Left bundle branch Sinoatrial node Right bundle branch Atrioventricular node Purkinje fibersarrow_forward
- Chordae tendineae: Group of answer choices hold the AV valves in place. contract when the heart contracts. are one part of the conductance system of the heart. regulate blood flow into the ventricles. are stretched during ventricular systole.arrow_forwardA premature ventricular contraction (PVC) indicates which of the following Group of answer choices an extra ventricular contraction arial tachycardia ventricular fibrilation none of the abovearrow_forwardWhich of the following structures acts to carry electrical impulse to the ventricles? chordae tendineae Purkinje fibers papillary muscles SA nodearrow_forward
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