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Discussion Starter · #1 ·
Hello everyone

I hope you are doing great

I have a question

I read that Nitrates help patients with angina due to several facts

1- it decreases the after load by dilating the arterioles which reduces the peripheral vascular resistance ( that I understand )

2- it decreases the preload by dilating the veins which decreases Venus return

Here comes my question

Whenever we dilate a vein that decreases the pressure but increases the blood flow am I right ???

If that's right how come we increase the blood flow but still decreasing the venous return ?

Thank you

Looking forward to your answers
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