Peristalsis: Have you ever laughed so hard that you had yourdrink come out of your nose? Have you ever swallowed something soquickly and then had to cough it up because it went down the wrongpipe? This usually doesn’t happen because under normalcircumstances after you swallow your food, your epiglottis closesup over your wind pipe/traches that leads down to your lungs andyour soft palate lifts up to block the way to your nose. Yourtongue pushes back to your pharynx and then down your esophagus.How does food travel down through your esophagus? It’s not gravity.Q: Take a small drink of water. Bend down and touch yourtoes and swallow the water. Why were you still able to swallow thewater when you were upside down?
