I believe the answer is the ear drum.
He had an infection in his auditory canal
In one word, it is a 'tube'
The definition of the word motive is to move or an inner drive impulse.
The Cochlea is the auditory portion of the inner ear. It's from the Latin word for Snail, since it looks like a coiled shell.
The inner surface of the hand, or any of various tropical trees.
The hearing organ is also known as the auditory system. It consists of the outer ear, middle ear, inner ear, and auditory nerve pathways that transmit sound signals to the brain for processing and interpretation. The auditory system plays a crucial role in our ability to perceive and understand sounds in our environment.
The definition for the word acanthiomeatal line is "a hypothetical line extending from the external acoustic meatus to the acanthion. In dentistry a full maxillary denture is constructed so that its occlusal plane is parallel with this line. The line is used for radiographic positioning of the skull."
Depending on the specific definition of channel, an antonym for this word could be denial.
Auditorium Auditory
is inner;inland;privite;interior part;domestic affairs of a country in and out of a center
There are four syllables in "auditory." (Au-di-tor-y)
Audition, auditory, Auditorium.