Write An Essay On The Cardiovascular System

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An individual runs a race and finishes first. That individual is breathing harshly and if one could see internally, the heart is pumping blood rapidly as well. This is known as the Cardiovascular System. It contains not only the heart, but also the blood vessels, blood and much more which will be further explained in greater detail. The venous system takes blood back to the heart. It flows from the capillaries to the veins. The biggest vein in the body is the inferior vena cava. The superior cava carries blood from the upper part of the body to the heart, however the inferior cava carries blood from the lower part. Venous blood is very dark and both cavas ends in the right atrium. The main job of this system is to transport materials within …show more content…
What are Cardiovascular Diseases?

After discussing this system, hopefully some individuals understand how important it is to the human body and the depth it actually represents to life. [main idea/thesis of sorts] The Cardiovascular System is an essential part of how the humans can function regularly throughout the ages.

What is the Cardiovascular System composed of?

When an individual is asked about the Cardiovascular System, the first answer given would be the heart and following that would be blood flow, however those are only some of the structures found within the system. For example, the heart pumps blood through the whole body and the blood is returned back to it. Extending from the heart are the pulmonary circuit and the systemic circuit which is composed of blood vessels (arteries, veins and capillaries) (Martini, 548). Moreover, the bodily fluid that flows inside these structures is blood and it has traveled from all parts of the body. The heart is a complex organ that contains four chambers the left atria, right atria, left ventricle and right ventricle which pump the blood throughout the body. (Martini, Tallitsch and Timmons, 550). Furthermore, within the heart, are four valves called the tricuspid valve, the pulmonary valve, the mitral valve and the aortic valve which is responsible for the flow of the blood (Texas). Through elaborating on these structures, it will further highlight the role of each to the whole function of the Cardiovascular

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