HUMAN ANATOMY PKG >CUSTOM<
8th Edition
ISBN: 9781323572528
Author: Marieb
Publisher: Pearson Custom Publishing
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Question
Chapter 19, Problem 9RQ
Summary Introduction
To determine:
The adult structures of the heart that arise from the ventricle part of the embryonic heart.
Introduction:
The cells of the embryonic mesodermal germ layer give rise to the heart that differentiates into mesothelium, endothelium, and myocardium after gastrulation. The heart is the muscular organ that includes cardiac muscles. The heart is the major organ to supply oxygen-rich blood throughout the body.
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The simple squamous epithelium covering the valves of the heart is called(a) epicardium. (b) endocardium. (c) myocardium. (d) endothelium.
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The amount of blood forced out of the heart depends on the, (a) degree of stretching at the end of ventricular diastole. (b) contractility of the ventricle.(c) amount of pressure required to eject blood. (d) a, b, and c are correct.
Chapter 19 Solutions
HUMAN ANATOMY PKG >CUSTOM<
Ch. 19 - Prob. 1CYUCh. 19 - Prob. 2CYUCh. 19 - What is another name for the epicardium?Ch. 19 - Identify the heart chamber or chambers that...Ch. 19 - Prob. 5CYUCh. 19 - Prob. 6CYUCh. 19 - During ventricular systole, are the AV valves open...Ch. 19 - Differentiate a stenotic valve from an incompetent...Ch. 19 - What is the significance of the gap junctions in...Ch. 19 - What is the pacemaker of the heart, and where is...
Ch. 19 - Prob. 11CYUCh. 19 - Prob. 12CYUCh. 19 - Prob. 13CYUCh. 19 - How would incomplete formation of the...Ch. 19 - Which chamber of the heart is formed from the...Ch. 19 - What is the single most important factor for...Ch. 19 - The most external part of the pericardium is the...Ch. 19 - Prob. 2RQCh. 19 - How many cusps does the right atrioventricular...Ch. 19 - Prob. 4RQCh. 19 - Prob. 5RQCh. 19 - Prob. 6RQCh. 19 - Prob. 7RQCh. 19 - Prob. 8RQCh. 19 - Prob. 9RQCh. 19 - Which layer of the heart wall is the thickest? (a)...Ch. 19 - The inferior left corner of the heart is located...Ch. 19 - Prob. 12RQCh. 19 - Describe the location of the heart within the...Ch. 19 - Trace a drop of blood through all the heart...Ch. 19 - Prob. 15RQCh. 19 - Sketch the heart and draw all the coronary vessels...Ch. 19 - Prob. 17RQCh. 19 - Prob. 18RQCh. 19 - Make a drawing of the adult heart and the...Ch. 19 - How do the right and left ventricles differ...Ch. 19 - Which is more resistant to fatigue, cardiac muscle...Ch. 19 - Describe the structure and function of an...Ch. 19 - Compare and contrast the structure of cardiac...Ch. 19 - Classify the three congenital heart...Ch. 19 - Prob. 2CRCAQCh. 19 - Prob. 3CRCAQCh. 19 - After a man was stabbed in the chest, his face...Ch. 19 - A heroin addict felt tired, weak, and feverish....Ch. 19 - Another patient had an abnormal heart sound that...Ch. 19 - Prob. 7CRCAQCh. 19 - During a lethal heart attack, a blood. clot lodges...Ch. 19 - Prob. 9CRCAQ
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- The blood supply to the heart is provided by the, (a) systemic circulation. (b) pulmonary circulation. (c) coronary circulation. (d) coronary portal system.arrow_forwardWhich heart chamber forms most of the heart’s inferior surface? (a) right atrium, (b) right ventricle, (c) left atrium, (d) left ventricle.arrow_forwardThe vein through which blood reaches the heart from the abdominopelvic viscera is the (a) superior vena cava, (b) internal jugular vein, (c) inferior vena cava, (d) portal vein.arrow_forward
- The sac that provides a fluid-filled cushion for the heart is composed of (z) an inner visceral pleur and (y) an outer parietal pleura. (w) an outer parietal pericardium and (x) an inner visceral pericardium. (w) an endothelium and (x) a mesothelium. the diaphragm and (w) the pleuracardium. (x) a parietal pericardium and (z) parietal peritoneum.arrow_forwardThe autonomic centers for cardiac function are located in, (a) myocardial tissue of the heart. (b) cardiac center of the medulla oblongata. (c) the cerebral cortex. (d) a, b, and c are correct.arrow_forwardDuring diastole, the chambers of the heart, (a) undergo a sharp increase in pressure. (b) contract and push blood into an adjacent chamber. (c) relax and fill with blood. (d) reach a pressure of approximately 120 mm Hg.arrow_forward
- The blood vessels that collect blood from all tissues and organs and return it to the heart are the, (a) veins. (b) arteries. (c) capillaries. (d) arterioles.arrow_forwardBlood flow through the capillaries is steady despite the rhythmic pumping action of the heart because of the (a) elasticity of the large arteries only, (b) elasticity of all the arteries, (c) ligamentum arteriosum, (d) venous valves.arrow_forwardThe aortic valve closes (a) at the same time the mitral valve closes, (b) just after the atria contract, (c) just before the ventricles contract, (d) just after the ventricles contract.arrow_forward
- Blood within the veins is prevented from flowing away from the heart because of the presence of: (a) venous reservoirs. (b) muscular walls. (c) clots. (d) valves.arrow_forwardThe middle cardiac vein runs with which artery? (a) marginal artery, (b) aorta, (c) coronary sinus, (d) anterior interventricular artery, (e) posterior interventricular artery.arrow_forwardMake a drawing of the adult heart and the associated large vessels. Then color and label the adult regions that derive from each embryonic heart chamber: (a) sinus venosus, (b) embryonic atrium, (c) embryonic ventricle, (d) bulbus cordis.arrow_forward
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