The Heart

• The four blood components:

  Red Blood Cells

  White Blood Cells

  Platelets

  Plasma
• The function of the red blood cell is?

  To transport oxygen around the body for respiration
• What does de-oxygenated blood mean?

  No oxygen
• The 4 chambers of the heart?

  Right Atrium

  Right Ventricle

  Left Atrium

  Left Ventricle
• What does the heart valve prevent?

  The back-flow of blood in the heart
• Why is the left ventricle thicker than the wall of the right ventricle?

  The left hand side needs to pump blood to the rest of the body
• The function of the pulmonary vein is?

  transport oxygenated blood from the lungs
• What is plasma?

  The part of blood which is pale yellow
• What is the role of the platelets?

  To clot the wound
• Name 3 Blood Vessels?

  Artery

  Veins

  Capillary
• The role of the artery?

  Transport blood away from the heart
• Name 2 features of the artery?

  Has a small lumen

  Thick muscular wall
• What is the role of the veins?

  Carry blood into the heart
• Name 2 features of the vein?

  Thin muscular walls

  Large lumen
• The role of the capillary?

  Connect arteries and veins
• Name 2 features of the capillary?

  Important for gas exchange

  They are one cell thick so diffusion can take place