Front

Identify structure A: internal nares, maxillary teeth, external nares, vomerine teeth.

Back

external nares

Front

Identify structure B: internal nares, maxillary teeth, external nares, vomerine teeth

Back

maxillary teeth

Front

Identify structure C.

Back

vomerine teeth

Front

Identify structure D.

Back

nictitating membrane

Front

Identify structure E.

Back

tympanum

Front

Identify structure F.

Back

gullet (esophagus)

Front

Identify structure G. Options: glottis, gullet, tongue, eustachian tube

Back

eustachian tube

Front

Identify structure H: gullet, glottis, tongue, eustachian tube.

Back

glottis

Front

Identify structure I.

Back

tongue

Front

These are used to equalize pressure in the inner ear while the frog is swimming. Located near the jaw on both sides of the mouth.

Back

eustachian tube