Circulatory system

heart

veins

oxygen poor blood

blood flows back to the heart

artery

oxygen rich blood

tre

thick to withstand heartbeats

pulse is the pressure from the heartbeat

One way flow

capillaries

thinnest blood vessel that allows the transfer of oxygen and other essential nutrients

blood

erythrocytes

plasma

allows oxygen and nutrients to go
out of veins and into cells more easily

thrombocytes

leukocytes

white blood cells

fight infections

diseases

heart attack

fatty material/plaque fills up artery walls

stroke

hypertension

upper chambers receive blood

lower chambers pump blood

lungs

transports oxygen and nutrients to needed areas

brings oxygen to the heart