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Circulatory System
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Term | Definition |
---|---|
Artery | have thick walls. carry blood away from the heart |
vein | have thin walls. carry blood to the heart |
capillary | smallest part of the body's blood vessel |
heart | the biggest muscle in the body. pumps blood throughout the entire body |
red blood cells | carry oxygen to every cell in your body |
white blood cells | fight infections |
platelets | help in the closing process of a cut. when a blood cell vessel breaks,the platelets gather to close it |
plasma | a yellow liquid that carries nutrients hormones and proteins throughout the body |
valve | allows blood to flow one way. makes blood travel faster |
aorta | top of the heart |