Page 54 - Pharmacology Mnemonics and Short Notes

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M 1  increase Gastric secretions (increase proportion of water)

M 2 receptor

M 2 is just like M & M chocolate in shape of Heart. And you love them

but this time you are having no chocolate.

SO its Functions will be
M and M
 Decease heart Rate
chocholate

 Decrease Force of contraction of Heart

 Decrease Cardiac output

M 3 receptor

Anything that comes under parasympathetic control and not from
M 1 (gastric secretions) and M 2 (Heart depression effects) will come
here.

So let’s start

Most of the functions are reverse of sympathetic

 Relax Sphincters ( opposite to alpha 1 that contract them)

 Relax Blood Vessels  vasodilation ( opposite to alpha 1 that
contract them

 Increase GIT motility ( opposite to beta 2 that decrease GIT

motility by relaxing smooth muscles)

 Increase secretions  increase water content of saliva (
opposite to alpha 2 that decreases secretions )

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Pharmacology Mnemonics and Short Notes By Muhammad Ramzan Ul Rehman