The heart (Latin, cor ) is a cavity, the muscular organ cavity
pumping blood through blood vessels by repeated rhythmic contractions. Term
cardiac means to be related to the heart, from the Greek word cardia to the heart
The heart is one of the human organs that play a role in the circulatory system
(cardiovascular)
The heart is located in the chest cavity slightly left, between the right lung and
gram, as big as fist. Heart
left lung. Mass is about 300
is a single muscle consisting of a layer of endothelium. The human heart consists of:
4 rooms / cavities: porch (atrium) right left and left ventricle (ventricle)
. 4 Valves: Tricuspidalis, Bikuspidalis / Mitralis, Aortic Valve and Pulmonary Valve
RIGHT
VENA CAVA SUPERIOR
LEFT

Porch walls are much thinner than cubicle walls because the booths have to fight style
earth gravitası to pump down the bottom darı and require a bigger style
to supply large blood circulation, especially the aortic vessels, to pump to
all parts of the body that have blood vessels. Each porch and chamber in each
each hemisphere is connected by a valve. Valve between the right porch and
the right chamber is called the tricuspid valve or the triple leaf valve. While the valve is there
between the left portico and the left ventricle is called the mitral valve or the bicuspid valve valve (valve
bifoliate). The heart has several layers of muscle, among others:
Pericardium
Epicardium
Myocardium