The endocardium of the heart is composed of three layers. Describe their structure and also explain how the thickness of the endocardial layer varies between different chambers of the heart (5 points). 2. Match each of the following terms with its description (5 points): A. Parietal pericardium B. Myocardium C. Visceral pericardium D. Chordae tendinae E. Papillary muscles A. Smooth mesothelium covering heart B. Cardiac muscle that makes up bulk of heart C. Raised mounds of cardiac muscle D. Tethers that attach atrioventricular valves to heart wall E. Flat mesothelium lining pericardial sac
Added by Sarah T.
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Step 1: The three layers of the endocardium are the smooth endothelium, the subendothelial layer consisting of connective tissue, and the innermost layer of elastic fibers. Show more…
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Sri K.
The epicardium, the surface of the heart, covers and lines the walls of the ventricles. The fibrous pericardium attaches inferiorly to the diaphragm and is also called the endocardium. Pans mismatehed? Which of the following covers the inner surface of the heart? Endocardium. The cardiac muscle forms the interior walls of the ventricles and includes trabeculae carneae muscles that close valves and pectinate muscles that connect to cusps of valves. The chordae tendineae are connective tissue strings that form the bulk of the heart wall. 56. Which of the following layers? Epicardium, pericardium, endocardium, myocardium, or visceral pericardium? 57. Blood vessels enter and exit from the apex and base of the heart. C.auricles, D. trigone, E. inferior aspect, and middle cardiac vein empty into a venous cavity called the coronary sinus. 58. The great cardiac vein, pulmonary vein, inferior vena cava, superior vena cava, or coronary artery? 59. The valve located between the aortic semilunar valve, pulmonary semilunar valve, tricuspid valve, mitral valve, or bicuspid valve?
Adi S.
The heart is located in the ______________________ -- the medial cavity of the thorax. It rests on the superior surface of the _______________________. The heart is enclosed by a double-walled sac known as the _______________________. The _______________________ is the superficial layer of the pericardium that anchors it to surrounding structures. The ____________________________ is the serous membrane layer of the pericardium and is made up of the ________________________ which lines th internal surface of the pericardium and is continuous w/ the ___________________ or _________________ which is fused to the wall of the heart. Describe the 3 layers of the heart. Describe the pathways of blood through the heart. _______________ is the heart sounds associated with the closing of the heart valves. Lub is the sound of the ______________________ valves closing, and dub is the sound associated with the _____________________ valves closing. ____________________ are abnormal heart sounds. _________________ is described as cardiac contration, and _______________ is cardiac relaxation. _________________ carry blood away from the heart. ________________ are smaller dividing branches of arteries. ______________________ are the smallest blood vessels necessary for tissue exchange. ___________________ carry blood toward the heart. _________________ are the smaller branches of veins. Veins have a system of ________ to prevent back flow.
Katlin K.
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