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088 swallowing

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Every time we eat we swallow our food. The biophysical principles in swallowing are so interesting that we can try them in the classroom very easily.

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088 SWALLOWING Every time we eat we swallow our food. The biophysical principles in swallowing are so interesting that we can try them in the classroom very easily. MATERIALS REQUIRED Yourself Lets commence the experiment Sit relaxed and swallow your saliva completely have you swallowed? Very simple right?
X Now keep your lips and teeth open. Try to swallow your saliva. You are not able to????? Now keep your teeth closed, but lips open. Try to swallow your saliva. You are not able to? try you can a bit difficult but you can
Now keep your lips and teeth closed. Try to swallow your saliva. Its so easy. We have the crico-pharyngeal valve thats closed at a pressure greater than atmospheric pressure. When we keep our lips and teeth closed our tongue increases the pressure and that opens the valve. Thats why when we keep our mouth open the pressure in our mouth cavity is same as atmospheric pressure and we are unable to swallow our saliva. This is the biophysical principle in swallowing.

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088 swallowing

  • 1. 088 SWALLOWING Every time we eat we swallow our food. The biophysical principles in swallowing are so interesting that we can try them in the classroom very easily. MATERIALS REQUIRED Yourself Lets commence the experiment Sit relaxed and swallow your saliva completely have you swallowed? Very simple right?
  • 2. X Now keep your lips and teeth open. Try to swallow your saliva. You are not able to????? Now keep your teeth closed, but lips open. Try to swallow your saliva. You are not able to? try you can a bit difficult but you can
  • 3. Now keep your lips and teeth closed. Try to swallow your saliva. Its so easy. We have the crico-pharyngeal valve thats closed at a pressure greater than atmospheric pressure. When we keep our lips and teeth closed our tongue increases the pressure and that opens the valve. Thats why when we keep our mouth open the pressure in our mouth cavity is same as atmospheric pressure and we are unable to swallow our saliva. This is the biophysical principle in swallowing.