Erythrocytes are red colored, biconcave and enucleated disk like structures present in the plasma (RBCs).
Its functions are:
- It transport oxygen from lungs to other tissues and CO2 from other tissues to lungs.
- It maintain the viscosity of blood and ion-balance.
The larger and irregular cells having a nucleus is called leucocytes (WBCs). They are capable of amoeboid movement.
Its functions are:
- It helps in destroying solid substances.
- It fights against germ and destroy the damaged cell.
- It helps in the formation of antibodies which neutralize or kill the germs.