The Sense of Hearing: The Ears

Things to remember

• The ears have two types of receptors. They are phonoreceptor and statoresreceptor.
• Pinna is immovable and it is supported by an elastic cartilage which has a funnel-shape aperture called concha.
• External auditory canal is an oblique and tubular canal which runs inward from the canal to the ear drum.
• The middle ear consists of an air filled cavity called tympanic cavity.
• The internal ear consists of the vestibule, semicircular canal and cochlea.