There is no air tight barrier in between my two cheeks, so how am I controlling the air in my mouth and directing it to one specific cheek? The deflated cheek is still floppy, so it’s not like I’m tensing a muscle to stop it inflating.
Also works if I have a mouth full of water, and can also be directed to top and bottom lips.
Thank you.
In: Biology
Connect 2 balloons to an air pump, now hold one balloon tightly with your hand and let the other be free. What do you think will happen when you pump air? The free ballon will inflate. You might not notice but you are using your muscles to control your cheeks and let only one inflate.
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