Which is an accurate description of silty soil?

Silts have a moderate surface area/volume ratio. ... and sticky when wet, and have a very high water retaining capacity and very poor permeability. 

Silty loams: These soils have a higher percentage of silt than loam. They have a higher water holding capacity, but drain less well.

The 3 steps are vasoconstriction, temporary blockage of a platelet plug, formation of a fibrin clot better known as coagulation.