Lab Report on Coronary Transport

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Lab Report: Coronary transport of the heart Introduction: The heart is an organ of the cardiovascular system. Using blood as the transport vehicle, this system functions to transport substances around the body that are vital to homeostasis. In this lab, the experiment will be to locate and identify the various structure of the heart and also to trace the coronary circulation. Also with prepared slides, the objective will be to compare and contrast the different structures of cardiac muscle to that of smooth muscle. Materials: Heart model, Marieb and Mitchell laboratory manual, microscopic slides, camera, and microscope Procedure: Each lab group observed the external and internal surfaces of the heart, locating and identifying the three layers and the heart wall, the four chambers of the heart and the structures associated with them, locating and identifying the fossa ovalis, pectinate muscles, papillary muscles and chordae tendinae. Each lab group also located and identified the major valves of the heart and major vessels, including the arteries and veins associated with the heart and also the vessels of the coronary circulation and coronary sinus. Results: Photographic images included Discussion: In addition to the heart experiment, each group also viewed microscopic slides of mammalian and human arteries and veins. The differences noticed was that the arteries seemed to be thicker than the veins, which are thinner. The veins and arteries had characteristics of that of smooth muscle, whereas the aorta had characteristics of cardiac muscle. When viewing the muscles slides of cardiac and smooth muscle, cardiac had a striated, branching shape with visible intercalated discs. The smooth muscle was unstriated and spindle shaped. Upon closer examination a clear similarity was found between cardiac and smooth

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