The heart is the center of the entire body. Without the heart none of the
rest of the body would work. The heart pumps blood throughout the body. In this
blood is the oxygen that our body needs. Lub-dub is the way the heart sounds
as it is pumping. A normal heart pumps anywhere from about 62 to 80 beats per
minute. The heart is the “heart” of every body.
The blood flow through the heart is to keep oxygenated blood going
throughout the body. The deoxygenated blood enters the heart in two large
veins called the superior and inferior vena cava. Once the blood come in the
heart it pours into the right atrium. They right atrium contracts and push the
blood through the tricuspid valve and into the right ventricle. The…show more content… After the
blood is now full of oxygen the pulmonary vein empties the blood into the left
atrium. This contracts and the blood goes through the mitral valve and into the
left ventricle, this then contracts and the blood pushes its way through the aortic
valve, into the aorta and then to the body where it spreads all of its oxygen. After
all the oxygen in the blood is gone it restarts the process. This process happens
every time your heart beats.
The left ventricle is on the left side of the heart given the name. In this
ventricle oxygenated blood pours in. This blood is coming from the lungs, then
the left atrium and into the left ventricle. The blood then flows through the aortic
valve, into the aorta and into the body. As the blood flows through the body its
giving off oxygen. This means that it will run out o oxygen. When this happens
the blood moves back up the heart and repeats its process.
There are four valves in the heart. Each of these valves serves a very
important purpose. These valves only let blood in certain places every time that
the heart contracts. They also keep blood from flowing he wrong way