About 8 million blood cells die in the human body every second, and the same number are born each second.
Circulatory system diseases are the most common ways to die.
The circulatory system has three main parts; the heart,your blood vessels, and your ______?
The circulatory system is very interesting and profound. In one drop of blood there are 5 million red blood cells! Your heart beats around 3 billion times in the average life. Also, it's also known as the cardiovascular system. Enjoy!
A young person has a gallon of blood while an adult has 5 quarts(1 1/4 gallon)
If you put all of your blood vesils in a line,they would stretch around the entire equator 2 1/2 times
I don't know many but I know it is also called the Cardiovascular System!
Your pulmonary artery is the only artery with carbon dioxide in it.