Tuesday, June 2, 2009

The Circulatory System

The circulatory system is one of the important and fascinating systems of your body. The system takes blood around the body. It is controlled by the heart. The reason you need blood going around your body is because it carries oxygen and nutrients around. The steps of the circulatory system are: The blood enters your heart, then it goes to the right atrium. After that it will travel to the right ventricle, then it is pumped to the lungs, the lungs will add oxygen, it goes back to the heart and it enters the left ventricle, and the blood is pumped to the body, following that it returns to the heart. It is all used to move blood around your body. The veins and arteries carry it.

  • If all your blood vessels were laid end to end they would circle the wold twice.

  • The average heart beats 70 times a minute.



  1. Hi US!You have tell me really cool facts!I would rather to share with my students! Rock you!
    Mrs L

  2. Interesting explanation US

  3. thats some good information

  4. thanks for the good imformation