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Circulatory System Study Guide

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1) What are the main functions of this system?
The main functions of the circulatory system are to move blood and lymph throughout the whole body, which transports nutrients and oxygen to cells of the body and removes waste products like carbon dioxide, and to keep temperature and pH levels regulated. 2) What organs are part of this system?
The organs that are part of the circulatory system are the heart, the blood vessels, the arteries, the veins and the lungs, which aren't actually part of the circulatory system organs, but do help the circulatory system in doing its job a lot. 3) What do each of these organs do?
Each of these organs do a different but very important job for the human body. The arteries take blood that is rich in oxygen from the heart and spread it all around the body. The veins take blood that is poor in oxygen back to the heart. The blood vessels take oxygenated blood from the heart, gives oxygen to the and nutrients to the body's cells and gives back the deoxygenated blood back to the heart. The lungs, which aren't actually technically part of the circulatory system but they actually make it possible for the heart to function properly. The lungs give oxygen to the body and send blood …show more content…
The circulatory system interacts with the respiratory system with the connection between the lungs. The air taken in eventually goes into a sac-like thing called the alveoli. In exchange, oxygen from the air changes back into cells for it to become oxygenated again. That is called gas exchange. The circulatory system also interacts with the urinary/excretory system, this happening in the kidney. Blood from the heart goes to the kidneys through the aorta. The kidneys filter the blood them send it back to the heart. Lastly, the circulatory system interacts with the digestive4 system, this happening in the small intestines. Nutrients are absorbed from the bolus using the villi. Nutrients go into