Closed Circulatory System

• ↑
  • Circulatory System

Closed Circulatory System

• Blood is always inside blood vessels, seperate from insterstitial fluid.
• Heart pumps to and from tissues.
• Muscles and valves also help bring blood back.
• Efficiency depends on how fast the Circulatory System can transport fluids throughout the body.
  • Dependant on:
    • How it moves through the body
      • How wide or narrow blood vessels may be
    • Speed of blood flow
    • Composition of blood