Topics: Heart, Blood, Blood vessel Pages: 2 (544 words) Published: April 17, 2013
Cardiovascular System

Jean-Pierre Macabe
Ryan Robinson

The cardiovascular system also known as the circularity system is a organ functioned system that moves nutrients, gases and wastes to and away from get cells, this helps you do things like fight diseases etc. this system is seen to some people as a blood transportation.

The main purpose/function is to move nutrients, gases and wastes to and from cells.

The system is made up of heart, blood and blood vessels. The average adult heart is about the size of a clenched fist and weighs around 300 grams. It beats about 100,000 times in one day and 35 million times in a year.

Heart- The heart is a muscle that pumps and circulates the blood to all the tissues in the body. It’ s function most important because in order to survive your tissues need a continuous supply of oxygen and nutrients, if your heart was ever removed then you would deprive the tissues of what they need and that would lead to them make unusual changes that would lead to to your death.

The structure of the heart is made up of the atria, ventricles, bicuspid & tricuspid valve, chodae tendineae, aortic & pulmonary valve, aorta, superior & inferior vena cave and the pulmonary vein and artery. all of these serve their own purpose and help the heart function properly.

Blood Vessels- Blood vessels are channels where blood gets dished out to the body’s tissues. The vessels are two systems of tubes that start and end at the heart. One of those is called the pulmonary vessel in this system blood is transported from the right ventricle to the lungs and back to the left atrium and there is the systemic vessels that carry blood from the left ventricle to all the tissues in the body and then returns the blood to the right atrium. Depending on how the vessels work they are normally given 1 or 3 names, arteries, capillaries, or veins.

Arteries- Arteries carry blood away from the heart. The...
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