Cord blood holds hematopoietic stem cells for transplants, while cord tissue...

https://finnfazr460.theburnward.com/why-is-cord-blood-considered-an-accessible-source-of-stem-cells-a-clinical-perspective

Cord blood holds hematopoietic stem cells for transplants, while cord tissue provides mesenchymal stem cells for research. Timing is critical because these cells exist only briefly after birth. Rapid collection ensures their viability.