In the human body, the heart is situated slightly to the left of the center of the chest, and behind the breastbone (sternum). Diselaputi by the bag he identified as the pericardium and is surrounded by the lungs. In purata, adult heart weighs about 300-350 g. It consists of four rooms, two atrium on top and two ventricles below.
In the human body, the heart is situated slightly to the left of the center of the chest, and behind the breastbone (sternum). Surrounded by bags that are recognized as the pericardium and is surrounded by the lungs. In purata, adult heart weighs about 300-350 g. It consists of four rooms, two atrium on top and two ventricles below.
The thick muscular wall (septum) share atrium and right ventricle from the atrium and left ventricle. He separates oxygenated blood and were of mixed deoksigen. consent between the atrium and ventricle blood flow is only justified in a courtyard of the atrium to the ventricle.
Ventricles is a portion of heart to pump blood throughout the body including the lungs. Ventricular wall is thicker in proportion atrium and ventricle wall cowardice is more important to ensure the blood flows.
Blood was deoksigen from the right atrium enters the body through 2 lines, the superior vena cava (superior vena cava) and the inferior vena cava (inferior vena cava). Blood then flows into the right ventricle. Right ventricular blood was mengepam this deoksigen to lungs through the pulmonary artery. Loss of blood after carbon dioxide and absorb oxygen from the lungs, it flows through the pulmonary artery into the left atrium. From the left atrium, oxygenated blood into the left ventricle dipam. The left ventricle is the main security guard who left the blood through the aorta to the entire body except the lungs.
The left ventricle is thicker in proportion right. This is caused by the need to wear high pressure to overcome the obstacles imposed by the body. Right ventricle only pumps blood to the lungs, so he does not need a strong wall of muscle. It is also necessary karana two reasons: 1) capillaries lungs are weak high pressure will damage the capillaries and 2) the slow blood flow is needed to give time for gas exchange between blood and the lungs.
0 comments:
Post a Comment