Ciculatory system

• Cardiovascular System


  The life support structures that nourish your cells and function with other body systems to deliver different materials in the body
• Heart


  • Pumps the blood throughout the body
• Blood Vessels


  • Carry the blood throughout the body
• Types of Blood Vessels

  • Arteries - carry blood away from the heart
  • Veins - carry blood towards the heart
  • Capillaries - smallest blood vessels in the body
• Connecting the smallest arteries to the smallest veins

  Capillaries
• Blood


  Carries materials throughout the body
• Heart


  • Hollow muscle, as big as your fist
  • Has four chambers with specific tasks
  • Two atria are the receiving chambers
  • Two ventricles are the pumping chambers
  • Valves between each atrium and ventricle to prevent blood from flowing backwards
• The heart valves are like one-way doors that keep the blood moving in only one direction