| A | B |
|---|
| cyclosis | transport of substances within a cell by the streaming of cytoplasm |
| diffusion and active transport | movement of substances into and out of cells |
| hemoglobin | molecule that binds with oxygen and carries it in blood |
| aortic arches | pump blood in earthworms |
| tubular heart | pumps blood in grasshoppers |
| 4-chambered heart | pumps blood in humans |
| capillaries | small blood vessels that allow exchange of gases and nutrients with cells |
| closed circulatory system | blood always enclosed in blood vessels |
| open circulatory system | blood comes out of blood vessels to bathe tissues |
| grasshopper | this organism has an open circulatory system |
| earthworm | this organism has a closed circulatory system |
| dorsal and ventral blood vessels and capillaries | blood vessels of the earthworm |
| aorta | blood vessel in grasshopper |
| grasshopper blood | carries nutrients and waste |
| earthworm blood | carries O2, CO2, nutrients, waste |
| arteries | carry blood away from the heart |
| veins | carry blood to the heart |
| vena cava | brings blood into right atrium |
| pulmonary artery | brings blood from right ventricle to lungs |
| pulmonary vein | brings blood from lungs to left atrium |
| left ventricle | pumps blood through the aorta to the body |
| right ventricle | pumps blood through pulmonary artery |
| left atrium | receives blood from the lungs |
| right atrium | receives oxygen-poor blood from the body |
| tricuspid valve | connects RA and RV |
| bicuspid valve | connects LA and LV |
| SL valves | found in pulmonary artery and aorta |
| SA node | pacemaker of heart; causes atria to contract |
| AV node | causes ventricles to contract |
| 120 mm Hg | normal systolic blood pressure |
| 80 mm Hg | normal diastolic blood pressure |
| systole | period of contraction of heart |
| diastole | period of relaxation of heart |
| pulmonary circulation | circulation between heart and lungs |
| coronary circulation | supplies blood to muscle of heart |
| heart attack | caused by blockage of coronary artery |
| hepatic-portal circulation | circulation of blood from digestive tract to liver |
| renal circulation | circulation of blood to and from kidneys |
