1. Ravi Ranjan
  2. Life Processes
  3. Friday, June 17 2016, 12:59 PM
List the tree kinds of blood vessels of human circulatory system and write their functions in tabular form.
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Three types of blood vessels in human circulatory system are – Arteries, Veins and Capillaries.

Their functions are:

Arteries
(i)Arteries carry oxygenated blood from heart to various organs of the body.
(ii)They are thick walled.

Veins
(i)Veins carry deoxygenated blood from various organs to heart.
(ii)They are thin walled.

Capillaries
(i)Exchanges of materials between blood and surrounding cells take place in the capillaries.
(ii)They are thin walled and extremely narrow tubes or blood vessels which connect arteries to veins.
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