Initiation of force generation during vascular smooth muscle contraction involves a rise in intracellular calcium ([Ca(2+)]i) and phosphorylation of myosin light chains (MLC). However. reversal of these two processes alone does not account for the force inhibition that occurs during relaxation or inhibition of contraction. implicating that other mechanisms. https://www.chiggate.com/color-charm-050-cooling-violet-supply/