Objectives for Cardiovascular system test #4

Objectives for Cardiovascular system test #4

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Objectives for Cardiovascular System 1) Describe the location of the heart in the human body particularly noting which body cavity it is and which body cavities it is located between. Heart is centrally located in the thoracic cavity between the right & left pleural cavity in the area known as the mediastinum.(region of thoracic cavity b/t lungs) 2) Differenetiate between the location of the apex and base of the heart and name the 3 great vessels that emerge from the base of the heart. Apex: "bottom of heart" Sits on diaphram Base of Heart: "middle of heart" part that attaches to "back wall" 3 Great Vessels that come out of base of heart 1) Pulmonary Trunk 2) Aorta 3) Vena Cava 3) Draw a picture of an intact human heart and label the atria, ventricles, superior and inferior vena cava, aorta (ascending, arch and descending), pulmonary trunk and pulmonary arteries. 4) Name and describe the three layers in the wall of the heart. Endocardium: Myocardium: (heart muscle) Very outside of heart. Slimey layer
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Epicardium: Visceral Pericardium: "seran wrap" Parietal Pericardium: "paper" 5) Describe several physical characteristics of the cardiac muscle tissue and describe what and where intercalated discs are. Cardiac Tissue -Comprises 99% of heart -forms the myocardium (striated, involuntary, muscle tissue) -results in "pumping" of blood upon contraction -innervated by involuntary nervous system (visceral) - muscle fibers are short, branched and interconnected via INTERCALATED DISCS. Intercalacted discs: where one cell attaches to another cell. 6) Name the two specific membranes that form the pericardium and name the clinical conditions of having inflammed pericardium membranes. Parietal Pericardium: Visceral Pericardium: Pericarditis: inflammation of membrane around the heart. 7) Draw a picture of a dissected heart and label all the large vessels that carry blood into or away from the heart, the atrioventricular valves, the semilunar valves, the right and left atria and right and left ventricles.
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8) Starting with blood entering the right atrium, describe IN ORDER all the structures that blood will pass through until it exits out the aorta(Hint: for guidance, look at the picture you just drew) Superior Vena Cava --> Right Atrium --> Right A.V. Valve --> Right Ventricle --> Semilunar Pulmonary valve --> Pulmonary Trunk --> Pulmonary ascending aorta --> Lungs (pick of O2) --> Pulmonary veins --> Left Atrium --> Left A.V.
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This note was uploaded on 04/08/2009 for the course BMS 208 taught by Professor Richiert during the Winter '09 term at Grand Valley State University.

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Objectives for Cardiovascular system test #4

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