SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 20, Problem 25RAC
Summary Introduction
Introduction:
The heart pumps the blood, and the amount of blood that is pumped by it within one minute through the circulatory system is known as cardiac output. The normal range of cardiac output is 4700 mL/min.
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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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- A stroke results froma. hemorrhage in the brain.b. a blockage of a blood vessel in the brain.c. a deficiency of tissue plasminogen activator.d. Both a and b are correct.arrow_forwardGiven these characteristics:Matrix composed almost entirely of extracellular collagen fibers. It is able to withstand great pulling forces. Which of the tissue is described? A. Adipose. B.Cartilage. C.Bone. D. Dense connective tissue. E.Loose connective tissue 2. According to Frank-Starling law of the heart, A.increased preload causes increased cardiac output. B.increased afterload causes increased cardiac output. C.decreased preload causes increased afterload. D.afterload influences cardiac output more than preload. E.cardiac output is not influenced by preload.arrow_forwardVentricular cardiomyocytes under sympathetic drive during a bout of exercise... a. Would collectively make more force than at rest due to recruitment of more cardiomyocytes b. Would relax faster due to phosphorylation of the cardiac ryanodine receptors c. Would pump out more SV despite a decrease in EDV d. Would show an increased rate of myosin ATPase activity due to phosphorylation of the calcium ATPase pumps e. Would have elevated levels of cAMP and kinase activityarrow_forward
- Which of the following is NOT involved in short-term regulation of blood pressure? Select one: a. Alteration in blood volume b. Baroreceptor reflex c. Chemoreceptor mechanism d. Adrenal medullary mechanismarrow_forwardThe effects of the sympathetic and parasympathetic neurons on the heart can best be described as a. antagonistic b. identical c. cooperative d. adrenergicarrow_forwardIn humans the wall of the left ventricle is thicker than that of the right ventricle. This adaptation is due to the fact that the left ventricle Select one: O a. pumps blood to the extremities of the body O b. pumps blood that is low in oxygen content O C. is smaller than the right ventricle O d. pumps blood to the left and right lungsarrow_forward
- Which of the following statements about heart rate is false: A. Maximum heart rate can be estimated using a person’s age. B. The heart rate is the number of times the heart beats per minute. C. There is a direct relationship between heart rate and intensity of work. D. All of the above are true statementsarrow_forwardWhich of the following would not increase Cardiac Output? A. increase blood epinephrine concentration B. Increase Atrial Preload C. Increase Cardiac sarcoplasmic calcium concentration D. Increase Arterial Afterloadarrow_forwardIf heart rate is the independent variable and diastolic blood pressure is the dependent variable, which graph would best describe their relationship? Please thoroughly explain the effect on the dependent variable if the independent variable increases so I can fully understand the concept.arrow_forward
- why are cardiac muscle cells affected by hyperkalemia? A. All choices below are correct B. Resting membrane potential becomes less negative C. Voltage across the cardiac muscle cell cannot be maintained D. The cardiac muscle cell cannot respond to a nerve stimulusarrow_forwardWhich of the following is true of propagation of longitudinal electrical flow in cardiac muscle. A. Current flows longitudinally from a region of depolarization through ryanodine receptors. B. Longitudinal current flows through inward rectifier potassium channels. C. This current can be detected at the body surface, if the source is large enough. D. A and B. E. All are true.arrow_forwardWhich of the following is the correct term to indicate that the heart muscle is the source of the electrical signal that stimulates heart contraction? a. Myogenic b. Myopathy c. Myocardium d. Myotonia e. Myositisarrow_forward
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