Veins, Atries And Calillaries

Question 1

Facts about arteries

Answer 1

-the walls are strong so blood can be pump at high pressure -the walls are thick. -contain thick layers of muscle to make them strong 💪. -Has oxygenated blood

Question 2

Facts about veins

Answer 2

-blood is at low pressure so walls are not thick. -big lumen (hole in the middle) to help blood flow. -they have valves to keep the blood flowing the right way. -has deoxygenated blood

Question 3

Facts about capillaries

Answer 3

-capillaries are small -carry’s blood close to every cell to exchange substances to each cell. -permeable walls so substances can diffuse in and out. -supply food and oxygen, take away CO2. -only 1 cell thick