3 years ago

In humans which embryonic structure develops into ear canals and the eustachian tubes?

Biology

1 answer:

miskamm [114]3 years ago

3 0

Answer:

I think A

I hope this is help

Explanation:

The Eustachian tube originates from the tubotympanic recess, an embryonic structure derived from the first pharyngeal and second endodermal pouches. The proximal portion of the tubotympanic recess forms the tympanic cavity, and its distal portion becomes the Eustachian tube.

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