- All blood cells arises from a type of stem cell called Hematopoietic Stem Cell (HSC) and the process is called haematopoiesis.
- HSCs are pluripotent.
- Stem cells are self renewing.
- Stem cell maintain their population by cell division.
- Location : Bone Marrow
PROGENITOR CELLS – DIFFERENTIATE INTO SPECIFIC CELL TYPES BUT HAVE LOST THE ABILITY TO SELF RENEW.
For details click: Human Defence Mechanism