circulatory system

human circulatory system:-

The circulatory system is a network of organs that circulates blood throughout the body of a human or other vertebrate. It's made up of the heart, blood, and blood vessels, and its main function is to deliver oxygen and nutrients to cells, remove waste, and help tissues get rid of waste products. 

main parts of circulatory system:-

• Blood.
• The heart.
• The right side of the heart.
• The left side of the heart.
• Blood vessel
• Arteries.
• Capillaries.
• Veins.
  
  
  
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