| A | B |
|---|
| Circulatory System | carries blood around the body |
| Water | what blood is made mostly of |
| Plasma | the watery part of blood |
| red blood cells | carry oxygen to all parts of the body and carry away carbon dioxide |
| white blood cells | fight germs |
| blood vessels | carries blood |
| arteries | largest blood vessels that carry blood AWAY from the heart |
| veins | small blood vessels that carry blood back to the heart |
| heart | strong muscle that pumps blood |
| blood | carries food and oxygen to body cells |
| circulatory system | consists of blood, blood vessels, and the heart |
| bright red | color of blood in arteries; oxygen rich |
| veins | carry oxygen depleted blood |
| lungs | where blood picks up oxygen |
| capillaries | 1-cell thick blood vessel |
| permeable | when a membrane allows a particular substance to pass through it |
| capillaries | connect arteries and veins; very tiny |
| circulation | transport of materials in living things |
| leukemia | cancerous disease in the blood forming organs |
