Nervi vasorum control ________. a. vasoconstriction b. vasodilation c. capillary

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The nervi vasorum are the small nerve fibres which are found in the arteries and veins. This helps to trigger the muscle contraction smoothly in their walls.

Capillary permeability is a condition in which the capillary walls enable the substances  in the walls to pass into the tissues and cells from the blood and from the tissues or cells into the blood. The pores also called fenestrations in the endothelial walls helps to increase the capillary permeability towards bigger molecules.