How Red Blood Cells Deliver Oxygen

  1. Oxygen Shuttles: RBCs carry oxygen from your lungs to your tissues.
  2. Unique Shape: Their donut-like form increases surface area for gas exchange.
  3. Hemoglobin Power: Each cell carries millions of oxygen-binding molecules.
  4. No Nucleus: RBCs ditch their nucleus for extra oxygen space.
  5. Constant Flow: They circle your body in under a minute.
  6. Flexible Travelers: They bend to pass through tiny capillaries.
  7. Two-Way Trip: They carry carbon dioxide back to the lungs.
  8. Short Lifespan: RBCs live about 120 days before replacement.
  9. Massive Production: Bone marrow makes millions every second.
  10. Essential Delivery: Without oxygen transport, tissues shut down quickly.