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The three types are the arteries, veins, and capillaries.

Arteries are the vessels that carry blood away from your heart to the different parts of your body. The pulmonary arteries take blood to the lungs to pick up oxygen.

Veins bring deoxygenated blood back to the heart, and from the lungs after the blood is pumped there. Veins pass through the organs that clean the blood.

Capillaries are thin tubes with very thin walls which join arteries to veins, passing through all of the tissues and bringing food and oxygen to all of the cells.

1) Arteries Branch: (from biggest to smallest)

a) Elastic artery (conducting arteries)

b) Muscular artery (Distribution arteries)

c) Arteriole

d) Continuous Capillary (tiny, are found in most regions of the body)

2) Veins Branch:

a) Large vein ( great veins,Ex: superior, inferior Venae Cavae)

b) Medium-sized vein

c) Venules

d) Fenestrated capillary

there are lymph vessels also which serve as an accessory drainage system of the fluid that escapes during the exchange of materials through capillaries;as their walls are one cell thick so the erythrocytes(red blood cells) can only pass through them and therefore during the exchange of gases some of the liquid escapes through the gaps and accumulates in the intercellular spaces. this liquid enters the blind lymph vessel and this fluid is returned to the blood by the lymph vessel when it pours it into the subclavian artery.

this system also serves as a defense system as it destroys the germs and harmful viruses at special points called lymph nodes. this also transports fats from the intestine to the blood vessels during the process of digestion.
Capillaries: Smaller blood vessels that carry blood to the smaller places in the body ,for example fingers and toes

Arteries: Carry's oxygenated blood away from the heart

Veins: Bring's deoxygenated blood back to the heart

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7y ago

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