What connects the auricle to the tympanic membrane?

The auricle, or outer ear, is connected to the tympanic membrane (eardrum) via the external auditory canal, also known as the ear canal. This tubular passage allows sound waves to travel from the auricle to the tympanic membrane, where they cause vibrations that are then transmitted to the middle ear. The structure and positioning of the auricle enhance the collection and direction of sound toward the tympanic membrane.