Healthytips - The heart (in Latin, cor) is a cavity organ muscular pumping blood through the blood vessels by repeated 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 of blood.
Human heart size of approximately a fist for male adults. The heart is a muscle that consists of a single layer of endothelium. The heart is located in the thoracic cavity, the bone behind the chest/ sternum. Cardiac structure turned downward and slightly to the left.
Human heart size of approximately a fist for male adults. The heart is a muscle that consists of a single layer of endothelium. The heart is located in the thoracic cavity, the bone behind the chest/ sternum. Cardiac structure turned downward and slightly to the left.
The heart is almost completely enveloped by the lungs, but enclosed 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 is maintained in place by the blood vessels including the heart region is uneven / flat, like on the bottom and the side. Two lines (formed from the muscles) on the outer layer of the heart shows where the dividing wall between the left and right of the foyer (the atria) & chamber (ventricle).
Internally, the heart muscle is separated by a layer split into two parts, from top to bottom, into two pumps. Both these pumps since birth was never connected. It consists of two parts separated by a wall cavity of the heart. So we can conclude that the heart consists of four cavities, the porch right & left and right and left chambers.
Foyer wall is much thinner than the wall against the chamber because the chamber must be earth's gravity to pump from the bottom up, especially in the aorta, for pumping to all parts of the body that has blood vessels. Two pairs of cavities (chambers and porches at the same time) in each hemisphere are connected by a heart valve. Valve between the right of the foyer and the right chamber called trikuspidalis valve or valves are three-leaved. While there is a valve between the left porch and left ventricle is called mitralis valve or valves bifoliate.
At the time of pulsing, each room and fill with blood the heart relaxes (called diastole). Furthermore, the heart contracts and pumps blood out of the heart (called systole). Both porch relax and contract simultaneously, and both chambers also relax and contract simultaneously.
Oxygen-depleted blood and contains lots of carbon dioxide (dirty blood) of whole body venous flow through the two encouraged (vena cava) leading to the porch right. After the right atrium is filled with blood, he will 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 tiny vessels (capillaries) that surround the air pockets in the lungs, absorbing oxygen and releasing carbon dioxide which then exhaled.
Oxygen-rich blood (blood supply) flows in the pulmonary vein to the left of the foyer. Circulation between the right heart, lungs and left atrium called the pulmonary circulation.
Blood left in the foyer will be driven toward the left ventricle, which will further clean the blood pumping through the aortic valve into the aorta (largest artery in the body). Oxygen-rich blood is supplied to the entire body, except the lungs.
