Sheep Heart lab

1)The purpose of the pericardium is to protect the heart. It is the outer layer of the heart.

2) After observing the blood vessels connecting to the heart i saw that arteries differ from veins in their stucture because veins are smaller. Their functions differ because veins carry blood to the heart. Arteries carry blood away from the heart.

3)The function of the auricle that is placed inside the left and right atrium is increase capacity of atria.

4) The differences of the atria and ventricles is that the walla of ventricles are thicker and more muscular than the atria walls. Ventricles pump blood for heart.

7) The anchoring of the hearr valves by the chordae tendinae and pipillary muscles is important to the heart is it keeps blood from flowing backwards and keeps the valve blocked when blood tries to move backwards

9)The semilunar valves purpose is to not allow the blood to flow back from the arteries to the ventricles during the cardiac cycle. It also helps maintain the pressure put on the arteries. It separates the left ventricle from the opening of the aorta.

10) The valve disease occurs on the right side of heart, it results in swelling because the right side of the heart will affect the functioning of the structures, and one specific structure in the inferior vena cava.    

12)   The left side of the heart deals with oxygenated blood, the left ventricle walls are thicker and has to pump oxygenated blood. The left side recieves oxygenated blood from pulmonary cells, then pumps throughout the body cells. The right side contains SA AV nodes, recieves deoxygenated blood from body organs through the superior and inferior vena cava and returns the blood through the pulmonary artery.