By: Allyson Deslatte / Period 6

What is the job of the Circulatory System? The Circulatory System is responsible for transporting materials throughout the entire body. It transports nutrients, water, and oxygen to your billions of body cells and carries away wastes that your body cells produce, such as carbon dioxide. The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries.

Overall view of the circulatory system



  • Blood is the fluid that carries gases, nutrients, and wastes through the body.  

                                                       BLOOD VESSELS    

Blood vessels are the part of the circulatory system that transport blood throughout  the human body. These are the 3 major types of blood vessels:

  • vein
  • capillary
  • artery


  • Veins are blood vessels that carry blood toward the heart.               


  • Capillaries are the smallest of the blood vessels.
  • Connect the arterial and venal blood vessels.
  • Deliver oxygen-rich blood to body cells and take oxygen-poor blood away from body cells.


  • Arteries are blood vessels that carry blood away from the heart.


  • The heart is a muscular organ in humans and other animals.
  • Pumps blood through blood vessels.
  • The blood provides the body with oxygen and other nutrients, as well as removing metabolic wastes.

        Metabolic Waste: substances left over from excretory processes.

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