RED BLOOD CELLS ERYTHROCYTES
PLASMA
WHITE BLOOD CELLS LEUKOCYTES
PLATELETS
is liquid (mostly water) contains the blood cells transports nutrients and gases
disc-shaped and flexible. no nucleus. carry oxygen
fragments of cells form a clot to stop the bleeding.
protect the body against infections
CAPILLARIES
VEINS
ARTERIES
VENTRICLES
HEART
ATRIA
parts of the heart arteries enter them
enter the atria carry blood from the body to the heart
thin blood vessels that reach all the cells located between the arteries and the veins
parts of the heart veins enter them
leave the ventricles carry blood from the heart around the body
organ located inside the ribcage between the lungs pumps the blood.