Diffrentiate between artries and veins what is the importance of cappilaries in the circulatory system
Answers
➡Arteries
Carries deoxygenated blood except pulmonary artery
always carry blood awa6 from the heart to the tissues of the body
are usually present deeper in the skin
are more muscular and thick than veins.
➡Veins
Carries deoxygenated blood except pulmonary vein
Carries blood from tissues of the body back to the heart.
are usually present closer beneath the surface of the skin
are less muscular than the arteries,but contain valves that helps to keep the flow of blood in one direction ,usually towards heart against gravity.
would collapse if blood flow stopped.
➡ Capillaries
The entire circulatory system exists to serve the capillaries. They are the primary place where the blood stream gives off material (such as oxygen, nutrients, and hormones) to the tissues or picks up material (such as waste products) from them.