Increasing ventricular contractility - inotropic effect | NCLEX-RN | Khan Academy 

I have watched many of your videos. you are a great teacher!!

Just a small remark. The ventricles do receive parasympathetic innervation.

1:37 Wondered where we were going with that for a second . . .

Bro you are the best :)

Apparently there kinda-sorta is parasympathetic innervation of the ventricles, but it's indirect: the parasympathetic neurons synapse with the sympathetic fibres rather than the myocytes themselves, and the sympathetic fibres have muscarinic acetylcholine receptors which when activated inhibit noradrenaline release. So the PS fibres are inhibiting sympathetic activity rather than having a direct PS effect.

very clear cut explanation. Thank you!

Hey :) That is a great video! Thank you very much. Could someone tell me how these ATP-controlled channels are called? I'm working on a presentation on this topic and I would like to call it by its proper name

on. point. thank you.

thanks, that was so clear

You are amazing. Keep it up

This is so clear. Physiology!

OMG THANK U

nice explanation

:)

Potassium; "Cramps if insufficient potassium" must mean bad for the heart muscle as well. Yet too much potassium is unhealthy. So the balance must be key.