| A | B |
|---|
| semi-permeable | some materials diffuse through while others do not |
| diffusion | molecules move from high concentration to low concentration |
| osmosis | diffusion of water |
| active transport | materials move from LOW concentration to HIGH concentration; requires energy |
| bone marrow | where blood is made |
| White Blood Cells | fight infection |
| pulmonary | term meaning "lungs" |
| heart attack | death of a section of heart muscle |
| sickle cell anemia | disease where RBCs are crescent-shaped |
| hypertension | disease caused by high blood pressure |
| carbon dioxide | waste product carried back to the heart |
| aorta | largest artery in the body |
| vena cava | largest vein in the body |
| Capillaries | where diffusion between cell and blood |
| cerebral hemmorrhage | bleeding in the brain; may be caused by a stroke |
| pulmonary circulation | flow of blood to and from the lungs |
