Step 1: Understanding platelet formation.
Platelets, also known as thrombocytes, are small, cell-like structures that are formed in the bone marrow. They play a crucial role in blood clotting. Platelets are derived from large cells in the bone marrow called megakaryocytes, which release fragments of their cytoplasm into the bloodstream.
Step 2: Conclusion.
Therefore, platelets are formed in the bone marrow.