Heart circulatory system
We are going to speak about the heart how it work in our body but before we
start we have single circulation system and double circulation system. The deferens
between single circulation and double circulation .Single circulation system :
the blood is pumped from the heart to the gas exchange and directly to the rest
of the body .But the double circulation system: the blood is pumped from the
heart to the gas exchange organ back to
the heart and then to the rest of the body. Know we are going to speak about
double circulation system how it works in human body.
The
heart consists of four parts Right, left atrium it is in the top of the heart
and right, left ventricle this is down of the heart as we can see from the
photo. Also we have two circulations pulmonary and systemic. There are also two
valves that allow the blood to move in the heart. The pulmonary is the small
circulation it works like this: it take the blood from the right ventricle with carbon dioxide and filtrate it in the lungs to oxygen after this it goes to the left atrium.
The systemic is the biggest circulation it work like this: it take the filtrate
blood from left ventricle with oxygen and
pass it to the all of the body, in the capillaries oxygen change to carbon dioxide after this
go to right atrium with carbon dioxide and start to repeat the circulation again and again.
This the first way that the heart can work. Secondly is medulla it is in the
brain that can make the heat work if there is a problem in the heart.
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