Largest cell
- Who
- Unknown
- What
- 0.2 millimetre(s)
- When
- 01 January 0001
The megakaryocyte, a blood cell, measures 0.2 mm (0.007 in). It is found in the bone marrow and produces the `stickiest' particles in the body-the platelets, which play an important role in blood clotting.