A | B |
right atrium | chamber that collects oxygen-poor blood |
left atrium | chamber that collects oxygen-rich blood |
right ventricle | chamber that pumps oxygen-poor blood to lungs |
left ventricle | chamber that pumps oxygen-rich blood out to body, has thickest walls |
inferior vena cava | vein that brings blood back to heart from lower body |
superior vena cava | vein that brings blood back to heart from upper body |
septum | part of heart that divides right and left sides |
aorta | largest artery in body |
pulmonary arteries | vessels that carry oxygen poor blood to lungs from heart |
pulmonary veins | vessels that carry oxygen rich blood back to heart from lungs |
lungs | organs where blood exchanges CO2 for O2 |
arteries | blood vessels that carry blood away from heart |
veins | blood vessels that carry blood back to heart |
valves + muscles | these help blood travel in one direction through veins |
high pressure | this keeps blood flowing through arteries |
capillaries | tiniest blood vessels that come close to every cell |
systole | highest pressure, when ventricles contract to pump blood |
diastole | lowest pressure, when ventricles relax and refill |
pulse | this can be felt by pressing on an artery |
red blood cells | contain hemoglobin which carries oxygen |
white blood cells | help fight disease and infection |
platelets | cell fragments that help blood clot |
plasma | liquid part of blood |
type A | blood type with A antigens, can give to A + AB |
type B | blood type with B antigens, can give to B + AB |
type AB | universal recipient blood type |
type O | universal donor blood type, has no antigens |
Rh factor | extra protein that is found in positive blood types |
lymphatic system | returns excess fluid in body tissues to bloodstream |
SA node | the pacemaker, sends out electrical signals to maintain heartbeat |
pulmonary circulation | pathway blood takes between lungs and heart |
systemic circulation | pathway blood takes between heart and other tissues |
coronary circulation | pathway of blood to tissues of heart itself |
renal circulation | pathway of blood to kidneys, which filter blood |
hepatic portal circulation | pathway of blood to liver, where excess nutrients are stored |