What are the openings inside of the frog's mouth?

The openings could be one of the following 3 hole/s you see:

• Eustachian Tubes
• Esophagus
• Glottis

Most of us have done a frog dissection in school at one point or another and the inside of the frogs mouth can look very confusing.

When you pin back the top of the mouth and stare at the frog (it looks as though he is opening wide, like you do when you visit the dentist), you will see the following:

1. . Esophagus opening.
2. . Vomerine teeth.
3. . Grove of the maxilla.
4. . Maxillary teeth.
5. . Internal nare.
6. . Eye ball.
7. . Eustachian tube opening.
8. . Jaw ridge.
9. . Underside of the tongue.
10. . Glottis.
11. . Cut muscle and bone.

 

Which hole does what?

The two openings, or holes on the side of the frog's head are the Eustachian Tube openings, which pretty much regulate air pressure.

The wide opening in the center of the frogs mouth is the esophagus, the muscular tube that enables the frog to swallow and digest food.

The tiny Glottis 'hole' is a tube used for breathing that leads to the lungs and is located under the Esophagus.