State the types of blood vessels, Biology

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Blood Vessels

There are three types of blood vessels. They are:

1) Arteries: Arteries carry blood from heart to different organs. They have thick wall.

2) Veins: Veins are comparatively thin walled and have valves. Veins carry back blood from different organs back to the heart.

3) Capillaries: Capillaries are very small and thin walled blood vessels. Through their thin walls, oxygen, carbon dioxide, glucose etc. which are carried by blood can diffuse from blood to tissues.

 


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