Biology (fetal pig)
posted by Sarah .
What substance passes through the glottis? [Is it Air??]
What substances passes through the esophagus? [I don't know if this is food]
please help. thanks
Since this is not my area of expertise, I searched Google under the key words "glottis esophagus" to get these possible sources:
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/.