The Control of Heart Rate AQA A-Level Biology

[@yq_amz8180]

Thank you very much, this was extremely helpful!! New subscriber here, have a blessed day :)

[@AA-pk8zk]

Thank you!

[@meggiedoeshair]

OMG NEEDED THIS SO MUCH! Thank you sir.

[@mrhowebiology7667]

Great to hear!! Good on you for revising 🎉

[@Sam_n9]

This was easily explained! Thank you 😊

[@mrhowebiology7667]

🙏

[@puffingamer9870]

Don't acetylcholine and noradrenaline come into play as well?

[@juliusduku7026]

Thanks sir 🙏

[@gigachad9809]

Thank you for the help sir, I wanted to learn more about biology and this helped a lot. You might know me from school I have science with Mr M Howe

[@hoyama1520]

thank you sir

[@user-yl5nc6ct6l]

sir did we not have to learn about the heart rate in terms of acetylcholine and adrenaline ?

[@mr.r2207]

I’d learn it just in case, btw it’s noradrenaline

[@user-hs5ue6tx8c]

🐐

[@autumnanderson2285]

hello sir