The heart (Latin, cor) is a hollow, hollow, muscular organ that pumps blood through blood vessels by repetitive rhythmic contractions. The term cardiac means associated with the heart, from the Greek cardia to the heart. The heart is one organ that plays a role in the circulatory system.
Heart Surface
The size of the human heart more than a fist-sized adult male. The heart is a muscle that consists of a single layer of endothelium. Located in the heart of Thoracic cavity, behind the breastbone / sternum. Cardiac structure and turned down a little to the left.
The heart is almost completely surrounded by the lungs, but covered by a double membrane called the pericardium, which is attached to the diaphragm. The first layer is closely attached to the heart, whereas the outer layer is more loose and watery, to avoid friction between organs in the body that occurs because the constant pumping motion of the heart.
The heart kept in place by the blood vessels including the heart region of uniform / flat, like at the bottom and the side. Two lines pembelah (formed from the muscle) on the outer layer of the heart show where the partition between the left and right of the foyer (the atria) & chamber (ventricle).
[edit] Internal Structure of Heart
Internally, the heart is separated by a layer of muscle divided into two parts, from top to bottom, the two pumps. Both these pumps since birth was never connected. Hemisphere consists of two cavities separated by a wall of the heart. It can be concluded that the heart consists of four cavities, the porch right & left and right & left chambers.
Porch wall much thinner than the walls of the booth as the booth must resist the force of gravity to pump from the bottom up, especially in the aorta, to pump throughout the body that blood vessels. Two pairs of cavities (chambers and the hall simultaneously) on each side of the heart are connected by a valve. Valve between the right hall and chambers called the right of the valve or valves trikuspidalis leaf three. While the valve between the left hall and left room called the valve or valves mitralis bifoliate.
[edit] How it Works Heart
At the time of pulsing, each room and filled the heart relaxes the blood (called diastole). Furthermore the heart contracts and pumps blood out of the heart (called systole). Both the porch to relax and contract simultaneously, and both chambers also relax and contract simultaneously.
Blood is running out of oxygen and contains a lot of carbon dioxide (dirty blood) of whole body venous flow through the two encouraged (vena cava) to the right into the foyer. After the right atrium fills with blood, he would push the blood into the right chamber.
Blood from the right chamber will be pumped through the pulmonary valve into the pulmonary artery, leading to the lungs. Blood will flow through very small vessels (capillaries) that surrounds the air bag in the lungs, absorbing oxygen and releasing carbon dioxide which then exhaled.
Blood rich in oxygen (clean blood) flow in the pulmonary vein to the left of the foyer. Circulation between the right side of the heart, lungs and the left atrium called the pulmonary circulation.
Blood left in the hall will be driven toward the left room, which will then clean the blood pumping through the aortic valve into the aorta (largest artery in the body). This oxygen-rich blood available to the entire body except the lungs.
The size of the human heart more than a fist-sized adult male. The heart is a muscle that consists of a single layer of endothelium. Located in the heart of Thoracic cavity, behind the breastbone / sternum. Cardiac structure and turned down a little to the left.
The heart is almost completely surrounded by the lungs, but covered by a double membrane called the pericardium, which is attached to the diaphragm. The first layer is closely attached to the heart, whereas the outer layer is more loose and watery, to avoid friction between organs in the body that occurs because the constant pumping motion of the heart.
The heart kept in place by the blood vessels including the heart region of uniform / flat, like at the bottom and the side. Two lines pembelah (formed from the muscle) on the outer layer of the heart show where the partition between the left and right of the foyer (the atria) & chamber (ventricle).
[edit] Internal Structure of Heart
Internally, the heart is separated by a layer of muscle divided into two parts, from top to bottom, the two pumps. Both these pumps since birth was never connected. Hemisphere consists of two cavities separated by a wall of the heart. It can be concluded that the heart consists of four cavities, the porch right & left and right & left chambers.
Porch wall much thinner than the walls of the booth as the booth must resist the force of gravity to pump from the bottom up, especially in the aorta, to pump throughout the body that blood vessels. Two pairs of cavities (chambers and the hall simultaneously) on each side of the heart are connected by a valve. Valve between the right hall and chambers called the right of the valve or valves trikuspidalis leaf three. While the valve between the left hall and left room called the valve or valves mitralis bifoliate.
[edit] How it Works Heart
At the time of pulsing, each room and filled the heart relaxes the blood (called diastole). Furthermore the heart contracts and pumps blood out of the heart (called systole). Both the porch to relax and contract simultaneously, and both chambers also relax and contract simultaneously.
Blood is running out of oxygen and contains a lot of carbon dioxide (dirty blood) of whole body venous flow through the two encouraged (vena cava) to the right into the foyer. After the right atrium fills with blood, he would push the blood into the right chamber.
Blood from the right chamber will be pumped through the pulmonary valve into the pulmonary artery, leading to the lungs. Blood will flow through very small vessels (capillaries) that surrounds the air bag in the lungs, absorbing oxygen and releasing carbon dioxide which then exhaled.
Blood rich in oxygen (clean blood) flow in the pulmonary vein to the left of the foyer. Circulation between the right side of the heart, lungs and the left atrium called the pulmonary circulation.
Blood left in the hall will be driven toward the left room, which will then clean the blood pumping through the aortic valve into the aorta (largest artery in the body). This oxygen-rich blood available to the entire body except the lungs.
