Question

Explain thestructur of ear drum
tell fast​

Answer 1

Answer:

Retracted eardrums are caused by a problem with your Eustachian tubes. These tubes drain fluid to help maintain even pressure inside and outside of your ears.

Retracted eardrums are caused by a problem with your Eustachian tubes. These tubes drain fluid to help maintain even pressure inside and outside of your ears.When your Eustachian tubes aren’t working correctly, decreased pressure inside your ear can cause your eardrum to collapse inward.

Answer 2

Explanation:

The drum membrane has three layers: the outer layer, continuous with the skin on the external canal; the inner layer, continuous with the mucous membrane lining the middle ear; and, between the two, a layer of radial and circular fibres that give the membrane its tension and stiffness.