Capillaries are the smallest of all blood vessels, with diameters smaller than that of a human hair; they have the capacity to transport only small quantities of blood, and blood flows through these vessels very slowly.
Kapillaarid on väikseim kõigist veresooni, diameetriga väiksem kui juustest; nad on suutelised transport ainult väikestes kogustes verd, ja veri voolab need laevad väga aeglaselt.