physiology question - bishoy

[ArchivalUser]

I am asking about concept that is not clear to me when we constict the veins it causes an increase in venous return and decreased compliance of the vein what about venous dilatations and increase blood volume as the action of the nitrates do does it also increase the venous return so both venous constiction and dilatations increase venous return and what about change in preassure in veins

[ArchivalUser]

no man no...nitrates decrease venous return n decrease preload----

one advice..clear this viscious circle of cvs n renin angiotension very well in concepts..it l hit ur head at each n every point in step1...