Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 13, Problem 7aCP
Discuss how defective valves affect blood flow within the heart and produce heart murmurs.
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Another patient had an abnormal heart sound that indicated a stenotic valve. Define this condition, and contrast it with an incompetent heart valve.
Label the anatomical structures of the heart.
Answer letters: b,d,l
Discuss the pressure gradients through the heart that impact the flow of blood.
Chapter 13 Solutions
Human Physiology
Ch. 13 - State the components of the circulatory system...Ch. 13 - Prob. 1bCPCh. 13 - Prob. 2CPCh. 13 - Prob. 3CPCh. 13 - Describe how the rate of erythropoiesis is...Ch. 13 - Prob. 5aCPCh. 13 - Prob. 5bCPCh. 13 - Using a flow diagram (arrows), describe the...Ch. 13 - Use a flow diagram to describe the systemic...Ch. 13 - List the AV valves and the valves of the pulmonary...
Ch. 13 - Discuss how defective valves affect blood flow...Ch. 13 - Prob. 7bCPCh. 13 - Prob. 8aCPCh. 13 - Prob. 8bCPCh. 13 - Draw a figure to illustrate the pressure...Ch. 13 - Prob. 10aCPCh. 13 - Using a line diagram, illustrate a myocardial...Ch. 13 - Draw an ECG and label the waves. Indicate the...Ch. 13 - Draw a figure that shows the relationship between...Ch. 13 - Prob. 11cCPCh. 13 - Prob. 12aCPCh. 13 - Prob. 12bCPCh. 13 - Explain the functions of capillaries and describe...Ch. 13 - Prob. 14CPCh. 13 - Prob. 15CPCh. 13 - Identify normal and pathological causes of...Ch. 13 - Prob. 16bCPCh. 13 - Prob. 17aCPCh. 13 - Explain how the lymphatic system and the...Ch. 13 - Prob. 18CPCh. 13 - Prob. 1RACh. 13 - All arteries in the body contain oxygen-rich blood...Ch. 13 - The "lub," or first heart sound, is produced by...Ch. 13 - The first heart sound is produced at
Ch. 13 - Changes in the cardiac rate primarily reflect...Ch. 13 - Prob. 6RACh. 13 - Prob. 7RACh. 13 - The cells that normally have the fastest rate of...Ch. 13 - Which of these statements is true? a. The heart...Ch. 13 - Prob. 10RACh. 13 - Prob. 11RACh. 13 - Prob. 12RACh. 13 - Prob. 13RACh. 13 - Prob. 14RACh. 13 - Prob. 15RACh. 13 - During the phase of isovolumetric relaxation of...Ch. 13 - Peristaltic waves of contraction move fluid within...Ch. 13 - Describe how the pacemaker cells produce a...Ch. 13 - What characteristic of the SA node distinguishes...Ch. 13 - Compare the duration of the heart's contraction...Ch. 13 - Step by step, describe the pressure changes that...Ch. 13 - Can a detective valve be detected by an ECG? Can a...Ch. 13 - Describe the causes of the P, QRS, and T waves of...Ch. 13 - The lungs are the only organs that receive the...Ch. 13 - Prob. 25RACh. 13 - Prob. 26RACh. 13 - Prob. 27RACh. 13 - Prob. 28RACh. 13 - Prob. 29RACh. 13 - Prob. 30RACh. 13 - Prob. 31RACh. 13 - Prob. 32RACh. 13 - Prob. 33RACh. 13 - Prob. 34RACh. 13 - Prob. 35RACh. 13 - Prob. 36RACh. 13 - Prob. 37RACh. 13 - Prob. 38RACh. 13 - Prob. 39RACh. 13 - Prob. 40RACh. 13 - Prob. 41RACh. 13 - Prob. 42RA
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- Indicate which of the following sentences is true in heart failure caused by stenosis of the mitral valve. Group of answer choices 1)Anytime a valve is stenotic, the L atrium must generate a greater force than normal to attempt to move blood through the narrowed opening. This decreases the workload on the heart, eventually leading to an inoperative muscle. 2)Anytime a valve is stenotic, the L atrium must generate a greater force than normal to attempt to move blood through the narrowed opening into the L ventricle. This increases the workload on the heart, eventually leading to its weakening and failing. 3)Anytime a valve is stenotic, the R atrium cannot generate greater force than normal to attempt to move blood through the narrowed opening, and it fails. 4)Anytime there is valve regurgitation, the heart must generate a greater force than normal to attempt to move blood through the narrowed opening into the ventricle. This increases the workload on the heart,…arrow_forwardIdentify if the statements are TRUE or FALSE. TRUE FALSE STATEMENT A stenosis of the bicuspid valve might cause blood to back up into the venae cavae. The valve that is located on the same side of the heart as the pulmonary semilunar valve is the mitral valve. Angina pectoris is the comprehensive term for heart attack.arrow_forwardUsing your knowledge, explain why mitral valve prolapse occurs more often than tricuspid prolapse.arrow_forward
- Identify if the statements are TRUE or FALSE. TRUE FALSE STATEMENT The sinoatrial node is situated in the wall of the interventricular septum. Left ventricle ->Left atrium ->Right ventricle ->Right atrium is the correct sequence for blood entering the heart through the vena cavae and leaving through the aorta. The outermost of the three layers of the heart is supracardium. A stenosis of the bicuspid valve might cause blood to back up into the venae cavae. The valve that is located on the same side of the heart as the pulmonary semilunar valve is the mitral valve. Angina pectoris is the comprehensive term for heart attack. Cutting the vagus nerves where they innervate the heart would increase the heart rate. During the ventricular contraction all the blood is forced out of the ventricles. At late diastole, the atria and ventricles are relaxed and the aortic…arrow_forwardIdentify if the statements are TRUE or FALSE. TRUE FALSE STATEMENTS Cutting the vagus nerves where they innervate the heart would increase the heart rate. During the ventricular contraction all the blood is forced out of the ventricles. At late diastole, the atria and ventricles are relaxed and the aortic semilunar valve is open.arrow_forwardCite the size, shape, and location of the heart.arrow_forward
- Identify/describe the four valves of the heart. Describe its functions.arrow_forwardIdentify the labeled structures in the following anterior view of the heart.arrow_forwardIdentify if the statements are TRUE or FALSE. TRUE FALSE STATEMENTS When the atrioventricular bundle is completely interrupted, the ventricles typically contract at 30 to 40 beats/minute. The left ventricular wall of the heart is thicker than the right wall in order to pump blood with a greater pressure. Impulses through the conduction system of the heart follow the ordered path SA Node ->Conduction Myofibers ->AV Bundle ->AV Node.arrow_forward
- Color the heart structures in the following figure; use the colors suggested e IV. Right atrium: Dark blue Right ventricle: Light blue Left atrium: Light red • Left ventricle: Dark red • Interatrial septum: Orange Interventricular septum: Yellow Tendinous cords (chordae tendineae): Black • Papillary muscle: Brownarrow_forwardDefine and briefly describe the following disorders associated with the heart: Silent myocardial ischemia- vascular stenosis- angina pectoris- myocardial infarction -arrow_forwardIn which septum is it normal to find openings in the adult heart? Group of answer choices interventricular septum atrioventricular septum nasal septum interatrial septumarrow_forward
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