CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Textbook Question
Chapter 23, Problem 14TYK
Some babies are born with a small hole in the wall between the left and right ventricles. How might this affect the oxygen content of the blood pumped out of the heart into the systemic circuit?
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Some babies are born with a heart defect in which the ventricles are connected to the wrong arteries—that is, the right ventricle sends blood to the aorta, and the left ventricle sends blood to the pulmonary trunk. What is the problem with this arrangement?
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Chapter 23 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 23 - Connecting the Concepts 1. Use the following...Ch. 23 - Prob. 2TYKCh. 23 - When the doctor listened to Janets heart, he heard...Ch. 23 - Prob. 4TYKCh. 23 - Prob. 5TYKCh. 23 - Prob. 6TYKCh. 23 - Blood flows more slowly in the arterioles than in...Ch. 23 - Which of the following is not a true statement...Ch. 23 - Trace the path of blood starting in a pulmonary...Ch. 23 - Prob. 10TYK
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- Describe the cardiac cycle.arrow_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_forwardSome babies, called “blue babies,” are born with a small hole in the wall between their heart’s left and right ventricles. Why do you suppose they are called “blue”? (Hint: How might this hole affect the oxygen content of theblood being pumped out into the body’s general circulation by the baby’s heart?)arrow_forward
- Valves between which structures of the heart shown in the figure control the direction of the movement of oxygenated blood within the heart and as it is pumped to the systemic circuit?arrow_forwardWhich structure is present in the right ventricle of the sheep's heart but not in the left ventricle?arrow_forwardWe analyzed the difference between the action potential of a cardiac contractile cell and an action potential in a neuron. Describe the physiological mechanisms behind the primary difference in the shape of these two action potentials. Why is this feature important to the normal workings of the heart?arrow_forward
- VSD, or ventricular septal defect, is a condition that accounts for half of all congenital cardiovascular anomalies. In this condition, a hole exists in the septum, the muscular wall between the ventricles, which allows blood from the right and left side of the heart to mix. What sort of problems might this condition cause?arrow_forwardIn a normal cardiac cycle, what two chambers of the heart contract first?arrow_forwardYou have a young woman on your ward who is awaiting heart surgery. She is keen to know about the structure and function of the heart and asks you to explain the flow of blood through the heart from start to finish. She wants to hear anatomical names and learn about physiological processes ejecting blood from her heart, your response will help keep her distracted from thinking about her upcoming operation. a. Describe the flow of blood through the heart, naming each of the vessels bringing and taking blood to and from the heart. Include chambers of the heart and name structures in the correct sequence along the blood's pathway through the heart - begin with blood returning to the heart from the body and end with blood being ejected into the systemic circulation. Include the names of the valves and identify which valves are open and closed during each cardiac cycle. Describe, using terms like diastole and systole, the changes in ventricular pressure during one cardiac cycle and…arrow_forward
- Figure shows the conduction system of the heart that transmit the electrical impulses for the coordination of cardiac cycle. a) Referring to the Figure , which part of the heart's electrical conduction is known as the “pacemaker” of the heart? b)Explain how D controls atria and ventricles which causes ventricular systole.arrow_forwardThe cardiac skeleton electrically insulates the atria from the ventricles? Why is this important?arrow_forward
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