What substance passes through the glottis? [Is it Air??]

Question

What substances passes through the esophagus? [I don't know if this is food]

please help. thanks

Answer 1

Since this is not my area of expertise, I searched Google under the key words "glottis esophagus" to get these possible sources:

https://www.google.com/search?client=safari&rls=en&q=glottis+esophagus&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.