| A | B |
| artery | bring blood AWAY from the heart |
| vein | bring blood TO the heart |
| capillaries | smallest blood vessels, exchange oxygen and carbon dioxide |
| what do veins have to prevent the backflow of blood? | valves |
| largest artery in the body | aorta |
| The heart is made of _________. | cardiac muscle |
| septum | separates the 2 sides of the heart |
| blood coming to the heart from the body is _________ | poor in oxygen (needs oxygen) |
| blood going to the body from the lungs is ______ | rich in oxygen |
| the heart has ____ chambers | four |
| which chambers carry oxygenated blood? | left atrium, left ventricle |
| the compound found in RBC that carries oxygen is _______ | hemoglobin |
| Capillaries connect ______ and ________ | arteries and veins |
| white blood cells | fight microbes (diseases) |
| what are the 4 parts of blood? | red blood cells, white blood cells, platelets, plasma |
| Which part of blood is mostly made of water? | plasma |
| help blood to clot | platelets |
| makes red blood cells | hemoglobin |
| After it leaves the heart, deoxygenated blood goes to the _______ | lungs |
| What is the pathway of blood starting w/the left side? | pulmonary vein, to left atrium, to left ventricle, to aorta, to body cells, to vena cava, to right atrium, to right ventricle, to pulmonary artery, to lungs |
| What blood vessel is muscular and elastic? | artery |
| Average adult has ___ liters of blood in their body | five |
| red blood cells are made in the | bone marrow |
| engulfing | process by which white blood cells take in bacteria |
| job of red blood cells | transport oxygen |
| 2 upper chambers of heart | right atrium, left atrium |
| 2 lower chambers of heart | right ventricle, left ventricle |