| A | B |
|---|
| circulatory system | the transport system of the human body |
| heart | is the pump that pushes the blood throughout the entire system |
| blood vessels | carries the blood |
| blood | is a tissue made up of a liquid called plasma and several types of cells |
| arteries | blood vessels that carry blood away from the heart |
| capillaries | tiny blood vessels that connect the smallest arteries with the smallest veins |
| veins | carry blood from the capillaries to the heart |
| pulse | the throbbing caused by blood rushing into the arteries |
| recipient | a person who receives blood can only safely be given blood of a certain type |
| donor | a person who gives blood for blood transfusions |
