By Lil Uzie Vert

Blood is a human tissue. Tissues consist of different types of cells working together. Forensic blood evidence consists primarily of blood types and blood spatter patterns. In this Mission, we will investigate blood types.


Platelets are cell fragments that assist in blood clotting. There are 300,000 Platelets per microliter of blood (300,000 per 1 millionth of a liter). The image below shows one Red Blood Cell surrounded by hundreds of Platelets.
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