Back to School: RBC vs WBC vs Platelets

Blood looks like a simple red liquid, but under a microscope, it's a bustling city. Here are the citizens:

1. Red Blood Cells (Rrythrocytes)

Job: The Delivery Trucks. They carry oxygen from lungs to tissues and bring CO2 back. They live 120 days.

2. White Blood Cells (Leukocytes)

Job: The Army. They fight viruses, bacteria, and foreign invaders. They live from days to years (memory cells).

3. Platelets (Thrombocytes)

Job: The Construction Crew. They rush to any cut or leak and form a plug (clot) to stop bleeding. They live only 8-10 days.

When you donate, you give a bit of everything!