Circulatory System

• The Circulatory System - this is the transport system by which blood is carried to all parts of the body. All other body systems depend on its functioning efficiently
• The Functions of the Circulatory System

  
  

  
  

  -Circulates blood through the body

  -transport water, oxygen and food to cells and removes wastes from the cells

  -helps other body systems to function e.g. blood supply to the muscles is increased during exercise

  -helps fight disease

  _helps maintain correct body temperature
• The Structure and Workings of the Circulatory System

  
  

  The circulatory system has three parts:

  
  

  
  

  _The heart - the organ which pumps blood around the body.

  
  

  _The blood vessels - the tubes (arteries, capillaries and veins.) through which the blood moves.

  
  

  _The blood itself. The average adult has about five litres of blood.
• Diagrammatic view of the heart and the circulatory system

  
• Diagram of the Circulatory System