So basically the auditory tube is receptors of the sounds or which makes sound turn into messages which the brain can identify. I'm gonna go with cochlea
The lens helps the eye to focus on images.
"The Lens. The lens is composed of transparent, flexible tissue and is located directly behind the iris and the pupil. It is the second part of your eye, after the cornea, that helps to focus light and images on your retina."
Specific events or chronic pressures.
Hope this helps.
Bye now! Good luck!