Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 3CYR
Which of the following statements is true?
a. The tricuspid valve is located between the right atrium and the right ventricle.
b. The mitral valve is located between the pulmonary veins and the left atrium.
c. The pulmonary valve is located between the pulmonary artery and the pulmonary veins.
d. The aortic valve is located between the right ventricle and the aorta.
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The tricuspid valve lies between the A. Right atrium and the right ventricle B. Left ventricle and the aorta C. Right ventricle and the pulmonary artery D. Left atrium and the left ventricle
The valve located between the right atrium and the right ventricle is thea. aortic semilunar valve. c. tricuspid valve.b. pulmonary semilunar valve. d. bicuspid (mitral) valve.
Which of the following statements is true about the SA (sinoatrial) node?
a. The action potential created by the pacemaker cells of the SA node directly stimulates the contractile cells of both the atria and ventricles.
b. The rate of spontaneous depolarization of nodal cells is the fastest in the SA node.
c. Pacemaker cells in the SA node form a pathway between the SA and AV nodes.
d. The pacemaker cells, which establish the heart rate, are located only in the SA node.
Chapter 17 Solutions
Human Anatomy & Physiology
Ch. 17.1 - Where is the heart located, and how large is it?Ch. 17.1 - What are the hearts upper and lower chambers...Ch. 17.1 - 3. From what sources does blood flow into the...Ch. 17.1 - 4. Which side of the heart is considered the...Ch. 17.1 - Which side of the heart is considered the systemic...Ch. 17.2 - Prob. 1QCCh. 17.2 - Prob. 2QCCh. 17.2 - 3. What are the three layers of the heart wall,...Ch. 17.2 - 4. What are the four main great vessels? From...Ch. 17.2 - How do the right and left ventricles differ in...
Ch. 17.2 - 6. Why do you think it is important to ensure via...Ch. 17.2 - 7. What is the overall pathway of blood flow...Ch. 17.2 - Prob. 4QCCh. 17.2 - Prob. 5QCCh. 17.2 - Prob. 6QCCh. 17.3 - How do pacemaker and contractile cells differ?...Ch. 17.3 - 2. What are intercalated discs? What is their...Ch. 17.3 - Prob. 5QCCh. 17.3 - Prob. 6QCCh. 17.3 - What is the sequence of events of a contractile...Ch. 17.3 - How does the refractory period of cardiac muscle...Ch. 17.3 - 7. What does an ECG record?
Ch. 17.3 - What are the five waves in an ECG, and what do...Ch. 17.4 - What causes the heart sounds S1 and S2?Ch. 17.4 - Prob. 2QCCh. 17.4 - Prob. 3QCCh. 17.4 - Is the end-diastolic or the end-systolic volume of...Ch. 17.4 - 5. Walk through the mechanical events of the...Ch. 17.4 - How do the ECG waves correlate with each part of...Ch. 17.4 - 7. How does the left ventricular pressure...Ch. 17.5 - Prob. 1QCCh. 17.5 - What is cardiac output? How does it relate to...Ch. 17.5 - Prob. 3QCCh. 17.5 - What is the Frank-Starling law, and how does it...Ch. 17.5 - What is a chronotropic agent?Ch. 17.5 - Prob. 6QCCh. 17.5 - 7. What effects does the parasympathetic nervous...Ch. 17.5 - How would a hormone that decreases the amount of...Ch. 17.5 - How is heart failure defined?Ch. 17 - 1. Mark the following statements as true or false....Ch. 17 - 2. The pericardial cavity is located between:
a....Ch. 17 - 3. Which of the following statements is true?
a....Ch. 17 - Match the following terms with the correct...Ch. 17 - Fill in the blanks: The coronary arteries are the...Ch. 17 - 6. How do pacemaker cardiac muscle cells differ...Ch. 17 - 7. Cardiac muscle cells are joined by structures...Ch. 17 - Prob. 8CYRCh. 17 - Prob. 9CYRCh. 17 - 10. The _________is the primary pacemaker of the...Ch. 17 - The AV node delay: a. allows the atria and...Ch. 17 - Explain what each of the following terms...Ch. 17 - 13. Mark the following statements as true or...Ch. 17 - Prob. 14CYRCh. 17 - 15. Fill in the blanks: The first heart sound is...Ch. 17 - Cardiac output is equal to: a. end-diastolic...Ch. 17 - Prob. 17CYRCh. 17 - 18. Which of the following statements is false?
a....Ch. 17 - 1. A birth defect called transposition of great...Ch. 17 - 2. Predict which would be more damaging to...Ch. 17 - 3. When the SA node doesn’t function properly, the...Ch. 17 - Prob. 4CYUCh. 17 - Prob. 1AYKACh. 17 - You are a nursing student in a hospital, and a...Ch. 17 - Prob. 3AYKACh. 17 - Prob. 4AYKB
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the choices below best describes the systemic circulation of blood?a. The flow of blood into the right atrium and eventually out of the left ventricle.b. The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.c. The movement of blood into the coronary arteries, through capillaries into the coronary sinus.d. The movement of blood from the aorta, through arteries and capillaries and then eventually to the vena cavae.arrow_forwardIn terms of being open or closed, what is the state of the mitral and tricuspid valve (left and right atrioventricular valves respectively) at the end of the first heart sound? a. Mitral is closed, Tricuspid is open b. Mitral is open, Tricuspid is closed c. Both are closed d. Both are openarrow_forwardWhich valve separates the left atrium from the leftventricle?a. mitralb. tricuspidc. pulmonary d. aorticarrow_forward
- Which of the following structures provides the anchoring site for the valves of the heart and prevents the conduction of electrophysiologic impulses form the atria to the ventricles? A. Chordae Tendineae B. Fibrous Pericardium C. Fibrous Skeleton of the heart D. MyocardiumE. Sinus Venosumarrow_forwardWhich of the following conditions might result in the back flow of blood through a weakened mitral valve? Group of answer choices a. High pressure in the left ventricle, low pressure in the left atrium b. High pressure in the left atrium, low pressure in the left ventricle c. High pressure in the right ventricle, low pressure in the right atrium d. High pressure in the right atrium, low pressure in the right ventriclearrow_forwardWhat forms an external boundary between the atria and the venticles on the surface of the heart? Select one: a.interventricular sulcus b.coronary sulcus c.interatrial septum d.interatrial septum e.fossa ovalisarrow_forward
- Why is it necessary to stimulate papillary muscles in the ventricle slightly earlier than the rest of the ventricular wall myocardium? a. to assure rapid conduction speed of the action potential b. to pull on AV valve cusps to prevent backflow c. to assure blood will surge toward the semilunar valves d. to assure coordinated contraction of the ventricular myocardiumarrow_forwardWhich of the following is the outside layer that lines the inner surface of the fibrous pericardium A. Visceral Pericardium B. Endocardium C. Parietal Pericardium D. Epicardium In systemic circulation, oxygen rich blood returned to the left side of the heart A. Aorta B Pulmonary Ventricles C. Superior vena cava D. Right ventricle 3. The umbilical cord houses A. 1 umblical artery, 2 umbilical veins B. 1 umbilical vein, 2 umbilical artery C. 1 umbilical artery, 1 umbilical vein D. 2 umbilical arteries, 2 umbilical veins 4. The oxygen and nutrients rich blood coming from the placenta is carried by the umbilical vein to the inferior vena cava via A. foramen gvale B. pulmonary vein C. aortic arch D. ductus venosus 5.Cephalic vein drains A. the medial aspect of the arm and empties into the brachial vein B. the posterior part of the head C. the lateral aspect of the arm and empties into the axillary vein D. drains the lower body 6. It is the artery that supplies most of the small intestine…arrow_forwardMatch the following: ? Prevents backflow into the left ventricle ? Prevents backflow into the right atrium ? Prevents backflow into the left atrium ? Prevents backflow into the right ventricle A. Aortic semilunar valve B. Mitral (bicuspid) valve C. Tricuspid valve D. Pulmonary semilunar valvearrow_forward
- Which of the following is/are true concerning the opening and closing of the cardiac valves? A. valves operate according to the pressures on either side of the valve B. valve operation is constantly being controlled by the medulla oblongata C. valve operation is determined directly by the cardiac action potential (electrical currents control the opening and closing of the valves.) D. valve operation is directly controlled by the papillary muscles within the ventricular wall. E. None of the above is correct.arrow_forwardConsider a blood clot that formed in a pulmonary venule. If the clot detached, in which of the following vessel types would it be most likely to become stuck? Select one: a. pulmonary vein b. systemic artery c. systemic vein d. pulmonary artery Please don't copy from the internetarrow_forwardThe systemic circulation ends at the: A.right atrium B. right ventricle C. left atrium D. left ventricle The period of ejection: A. begins with the first heart sound and ends with the opening of the AV-valve. B. begins with the second heart sound and ends with the closing of the AV-valve. C. begins with the second heart sound and ends with the opening of the Aortic-valve. D. begins with the opening of the Aortic-valve and ends with the second heart sound. The arterial p02 is relatively low in an individual suffering from congestive heart failur because: A. hemoglobin is mis-shapen and can't bind adequate 02 B. pulmonary ventilation is compromised by the decrease in arterial pCO2 bronchoconstriction increases the total amount of air in the alveoli 02 has difficulty diffusing through the fluid trapped in the lung tissue he volume of blood ejected by the heart per minute is termed: stroke volume cardiac output end diastolic volume end systolic volume ght and Left Ventricular Pressures are…arrow_forward
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