The ear canal, also known as the external auditory canal or external acoustic meatus, is a tubular structure that connects the outer ear to the middle ear. It plays a crucial role in the auditory system by directing sound waves from the external environment to the eardrum (tympanic membrane). The ear canal is typically about 2.5 centimeters (1 inch) long in adults and is lined with skin that contains glands that produce earwax (cerumen).
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