*ೃ༄ the heart *ೃ༄

• What is the function of the heart?

  increase blood pressure to pump blood around the body.
• Which type of blood vessel carries blood away from the heart? 

  Artery
• Which type of blood vessel carries blood towards the heart?  

  Vein
• Why are the valves essential?


  They make sure the blood goes the correct way round the heart
• What are pacemakers and where are they found?

  Implantable devices that control how fast your heart beats and they are located within the right atrium.
• Why is the left side of the heart thicker?


  Because it pumps blood to the rest of the body, while the right side only pumps blood to the lungs.