Eardrum (Tympanic Membrane)
Layer of tissue shaped like a cone at the end of the ear canal; moves back and forth and causes the bones in the middle ear to move; separates the middle ear from the outer ear.

Ear Canal
"Tunnel" that connects the pinna and the eardrum.

Ear Mold
Plastic fitting that fits into the most visible portion of the ear to conduct amplified sound from a hearing aid.

Electronystagmography (ENG)
Procedure that measures eye movements to evaluate dizziness.

Eustachian Tube
Small tube running from the middle ear into the throat; provides fresh air to the middle ear and allows fluid to drain from the middle ear.