FUND. OF ANATOMY & PHYSIOLOGY F16 PKG
10th Edition
ISBN: 9781323431122
Author: Martini
Publisher: PEARSON C
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Question
Chapter 20, Problem 17CP
Summary Introduction
To determine:
The effect of the stimulated acetylcholine receptors possess on the cardiac output.
Introduction:
Heart rate is denoted as HR and is referred as the number of heartbeats in a minute. This can be managed by the activities of the circulating hormones or the ANS (autonomic nervous system). Cardiac output is a term that is defined as the amount of blood that is pumped in a minute by the left ventricle.
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Chapter 20 Solutions
FUND. OF ANATOMY & PHYSIOLOGY F16 PKG
Ch. 20 - Prob. 1CPCh. 20 - Prob. 2CPCh. 20 - Why is the left ventricle more muscular than the...Ch. 20 - Prob. 4CPCh. 20 - Which structure of the heart is known as the...Ch. 20 - 6. If the cells of the SA node did not function,...Ch. 20 - Why is it important for impulses from the atria to...Ch. 20 - Give the technical terms for heart contraction and...Ch. 20 - List the phases of the cardiac cycle.Ch. 20 - Is the heart always pumping blood when pressure in...
Ch. 20 - What could cause an increase in the size of the...Ch. 20 - Define cardiac output.Ch. 20 - Prob. 13CPCh. 20 - Prob. 16CPCh. 20 - Prob. 14CPCh. 20 - Prob. 15CPCh. 20 - Prob. 17CPCh. 20 - Prob. 18CPCh. 20 - Prob. 20CPCh. 20 - The great cardiac vein drains blood from the heart...Ch. 20 - The autonomic centers for cardiac function are...Ch. 20 - Prob. 5RQCh. 20 - Prob. 6RQCh. 20 - The heart is surrounded by the (a) pleural cavity,...Ch. 20 - The cardiac skeleton of the heart has which two of...Ch. 20 - Cardiac output is equal to the (a) difference...Ch. 20 - Identify the superficial structures in the...Ch. 20 - Identify the structures in the following diagram...Ch. 20 - During diastole, a chamber of the heart (a)...Ch. 20 - During the cardiac cycle, the amount of blood...Ch. 20 - What role do the chordae tendineae and papillary...Ch. 20 - Describe the three distinct layers that make up...Ch. 20 - What are the valves in the heart, and what is the...Ch. 20 - Trace the normal pathway of an electrical impulse...Ch. 20 - What is the cardiac cycle? What phases and events...Ch. 20 - What three factors regulate stroke volume to...Ch. 20 - The cells of the conducting system differ from the...Ch. 20 - Which of the following is longer? (a) the...Ch. 20 - If the papillary muscles fail to contract, (a) the...Ch. 20 - Cardiac output cannot increase indefinitely...Ch. 20 - Describe the function of the SA node in the...Ch. 20 - What are the sources and significance of the four...Ch. 20 - Differentiate between stroke volume and cardiac...Ch. 20 - What factors influence cardiac output?Ch. 20 - What effect does sympathetic stimulation have on...Ch. 20 - Describe the effects of epinephrine,...Ch. 20 - Vern is suffering from cardiac arrhythmias and is...Ch. 20 - Harvey has a heart murmur in his left ventricle...Ch. 20 - The following measurements were made on two...Ch. 20 - Prob. 31RQCh. 20 - Prob. 1CCCh. 20 - Prob. 2CC
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Similar questions
- A patient is taking a drug that blocks beta-adrenergic receptors. What changes in cardiac function will the drug cause?arrow_forwardAtropine works by blocking acetylcholine receptors. If you add acetylcholine to the heart, followed by atropine, what would you expect to happen? Explain.arrow_forwardIn cardiac autorhythmic pacemaker cells, how does parasympathetic stimulation make it more difficultfor an action potential to occur?arrow_forward
- What would be the drawback of cardiac contractions being the same duration as skeletal muscle contractions?arrow_forwardWHAT ARE THE EFFECTS OF SYMPATHETIC AND PARASYMPATHETIC NERVIUS SYSTEM ON THE CARDIAC OUTPUT>arrow_forwardIn which direction does Ca2+ move in response to the opening of voltage-gated Ca2+ channels: into or out of the cardiac muscle cells?arrow_forward
- What effect will an increase in parasympathetic activity have on heart rate, force of contraction, and arteriolar diameter?arrow_forwardVentricular Contractility increases in response to circulating Epinephrine. What factor is responsible for this increase in the force of the contraction?arrow_forwardIn response to a severe hemorrhage, blood pressure lowers, the heart rate increases dramatically, and the stroke volume lowers. If low blood pressure activates a reflex that increases sympathetic stimulation of the heart, why is the stroke volume low?arrow_forward
- Why is your heart rate high after running a short distance, but not as elevated after running a much longer distance? How do you explain this?arrow_forwardWhy doesn't shortening the diastolic time decrease ventricular filling and thus decrease cardiac output?arrow_forwardWhen you are cold, your blood vessels contract. However, your heart rate and blood pressure increases. Explain. What is the physiological function of increasing heart rate?arrow_forward
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