Table 1. The various stages of platelet activation. Adapted from Ko and Cooper 1993, ref [36].

Type	Stage	Morphology
I	Round	Round or spherical without evidence of pseudopodia
II	Dendritic	Round with early-stage pseudopodia without flattening
III	Spread-Dendritic	Pseudopodia at intermediate stage, with evidence of pseudopodia flattening. No evidence of hyaloplasm spreading between pseudopodia
IV	Spreading	Evidence of pseudopodia formation, with spreading of hyaloplasm
V	Fully-Spread	Fully-spread hyaloplasm with no distinct pseudopodia. Central bodies adopt a flattened state