Tonicity 

Dr. Mike is the best first year nursing student take so much biology class no professor never explains this perfect god bless you dr. mike.

I wish everyone would explain things the way you do ! You explain it so simple for me to understand ! Thank you!! can you please make a video about the ' resting membrane potential' ???

Thank you so much !! The beauty of your lesson is its simplicity

Thank you for this remake!!

WOW, this may be an old video, but this information has not expiration date!! Thank you for being a great teacher, you explained this soo well !!

Thank you... This is very well explained ❤️❤️

Wow this was very helpful! Thank you so much

Wow. Thank you.

Thank you so much!

great video man cheers

brother your lecture outstanding

awesome again!!!

That was great👍

I am not getting your videos in my inbox, any idea how this is possible?

Thank you

❤❤i study in nursing sem 2 rn ngl but this help so much even it old video 😊😊

Thankyouuuuuu😭♥️

😞

Thank you Dr Mike!