Essentials of Human Anatomy & Physiology (12th Edition)
12th Edition
ISBN: 9780134395326
Author: Elaine N. Marieb, Suzanne M. Keller
Publisher: PEARSON
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Question
Chapter 11, Problem 24SAE
Summary Introduction
To review:
The difference between heart’s ability to contract and other muscle’s ability to contract.
Introduction:
The heart is an organ of the cardiovascular system, which acts as a pump that moves the blood throughout the body. The heart has to pump the blood throughout the life of a person without taking any break.
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Chapter 11 Solutions
Essentials of Human Anatomy & Physiology (12th Edition)
Ch. 11 - More than one choice may apply. Pulmonary veins...Ch. 11 - Given a volume of 150 ml at the end of diastole, a...Ch. 11 - Which of the following depolarizes next after the...Ch. 11 - During atrial systole, a. the atrial pressure...Ch. 11 - 5. Atrial repolarization coincides in time with...Ch. 11 - Soon after the onset of ventricular systole, the...Ch. 11 - The base of the heart is its ______ surface. a....Ch. 11 - 8. In comparing a parallel artery and vein, you...Ch. 11 - Prob. 9MCCh. 11 - Prob. 10MC
Ch. 11 - Prob. 11MCCh. 11 - 12. Which layer of the artery wall thickens most...Ch. 11 - Which of the following are associated with aging?...Ch. 11 - An increase in BP would be caused by all of the...Ch. 11 - The most external part of the pericardium is the...Ch. 11 - Prob. 16MCCh. 11 - Prob. 17MCCh. 11 - Prob. 18MCCh. 11 - 19. Draw a diagram of the heart showing the three...Ch. 11 - Prob. 20SAECh. 11 - Prob. 21SAECh. 11 - 22. Define systole and diastole.
Ch. 11 - Prob. 23SAECh. 11 - Prob. 24SAECh. 11 - Prob. 25SAECh. 11 - 26. Name three different factors that increase...Ch. 11 - Prob. 27SAECh. 11 - Describe the structure of capillary walls.Ch. 11 - Prob. 29SAECh. 11 - Name three factors that are important in promoting...Ch. 11 - Prob. 31SAECh. 11 - Trace a drop of blood from the left ventricle of...Ch. 11 - Prob. 33SAECh. 11 - 34. In a fetus, the liver and lungs are almost...Ch. 11 - Prob. 35SAECh. 11 - Prob. 36SAECh. 11 - Prob. 37SAECh. 11 - 38. Two elements determine blood pressure—the...Ch. 11 - Prob. 39SAECh. 11 - Prob. 40SAECh. 11 - Prob. 41SAECh. 11 - Explain why blood flow in arteries is pulsatile...Ch. 11 - Explain the relationship between the...Ch. 11 - 44. Which type of blood vessel is most important...Ch. 11 - Prob. 45SAECh. 11 - John is a 30-year-old man who is overweight and...Ch. 11 - 47. Mrs. Hamad, a middle-aged woman, is admitted...Ch. 11 - Hannah, a 14-year-old girl undergoing a physical...Ch. 11 - Prob. 49CTCh. 11 - Prob. 50CTCh. 11 - Mr. Grimaldi was previously diagnosed as having a...Ch. 11 - Prob. 52CTCh. 11 - The guards at the royal palace in London stand at...
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- Explain the role of tropomyosin in the muscle contraction process? How are the intercalated discs involved in the contraction of cardiac muscles?arrow_forwardHow does the fact that cardiac muscle does not undergo tetanus (as skeletal muscle does) affect the functioning of the heart?arrow_forwardWhat effect does an increase or a decrease inextracellular potassium, calcium, and sodium ions have onthe heart’s rate and force of contraction?arrow_forward
- At rest, the cardiac muscle is what?arrow_forwardWhat is the relationship between the skeletal system and the cardiovascular system?arrow_forwardWhich of the following is unique to cardiac musclecells?a. Only cardiac muscle contains a sarcoplasmicreticulum.b. Only cardiac muscle has gap junctions.c. Only cardiac muscle is capable ofautorhythmicityd. Only cardiac muscle has a high concentration ofmitochondria.arrow_forward
- What is the name of the blood vessel that supply cardiac muscle with oxygenated blood?arrow_forwardWhy would your heart rate increase or decrease to help maintain homeostasis when you exercise?arrow_forwardRead this article (http://openstaxcollege.org/l/ strokespell) to learn about a teenager who experiences a series of spells that suggest a stroke. He undergoes endless tests and seeks input from multiple doctors. In the end, one expert, one question, and a simple blood pressure cuff answers the question. Why would the heart have to beat faster when the teenager changes his body position from lying down to sitting, and then to standing?arrow_forward
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