Outside Ear Diagram. This causes the eardrum to vibrate and sound is produced. This part of the ear provides protection.
The human inner ear contains two divisions. The ear is divided into three anatomical regions. The ear canal or external auditory meatus is approximately 125 inches long.
The pinna functions as a kind.
Sound travels through the auricle and the auditory canal a short tube that ends at the eardrum. External auditory canal or ear canal is the channel from which the sound enters from the outside ear to the eardrum. A diagram of the ears structure the outer ear the outer ear includes the portion of the ear that we see the pinnaauricle and the ear canal. The outer ear is one of the three sections that comprise the ear.