circulatory system
cardiovascular system

Of note, the circulatory system was unknown at the time.

But it can also drive up blood pressure and stress the circulatory system.

Another important process involves the movement of blood by the circulatory system.

By increasing the amount of blood in your circulatory system.

"Without the circulatory system to provide them with nutrients, they break down."

Some people also use it to stimulate the circulatory system.

This can be a very long time if his circulatory system is kept functioning.

The heart and all blood vessels make up the circulatory system.

Added to this pressure is that required to move the blood through the circulatory system.

His lungs and circulatory system were getting the same treatment.