Circulatory system
Sergio García Burguillo
Created on October 16, 2024
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Transcript
circulatory system
SUMMARY
The circulatory system is responsible for supplying the body whith nutrients and oxygen,and removing some waste products.
Blood
Blood has four components.Plasma is a mixture of water(90%),proteins,nutrients,dissolved gases,waste products and salts.Red blood cells carry oxygen and carbon dioxide.White blood cells fight infections,such as bacteria and viruses.Platelets are fragments of cells.They help repair cuts and stop bleeding by sticking together where the skin is cut.
Heart
The heart two atia and two ventricles.Veins,such as the inferior vena cava,carry blood to the heart.Arteries,such as the aorta,carry blood away from the heart.Blood enters the heart through the atria.Then it flows into the ventricles where it pumped out.
Blood circulation
The heart pumps blood around the body.