what is the name of the structure that air passes through when going to lungs from mouth in the frog?

Since this is not my area of expertise, I searched Google under the key words "air passage in frog" to get these possible sources:

https://www.google.com/search?client=safari&rls=en&q=air+passage+in+frog&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/.

http://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html

Not really sure but i thinks is esophagus

The structure through which air passes from the mouth to the lungs in a frog is called the glottis.

To find the answer to this question, you can follow these steps:

1. Start by searching for information about the respiratory system of a frog.
2. Look for diagrams or descriptions that show the path of air from the mouth to the lungs.
3. Pay close attention to the specific name of the structure involved in this process.
4. Based on the information you find, you will discover that the structure in question is called the glottis.