The ear is the organ that is responsible for hearing. The ear is composed of main three parts. They are outer ear, middle ear, and inner ear.
- The ear has three main parts called outer ear, middle ear, and inner ear.
- The auditory canal is a slightly ‘S’ shaped and curved tube.
- The auditory canal has a hairy skin and glands that secrete ear wax.
- The tympanic membrane is located in between the middle ear and the inner ear
- The inner ear has three small bones named, malleus, incus,
and stapes.
- There are movable joints between malleus, incus, and stapes.
- The inner ear has two openings called oval window and
round window.
- The oval window is covered by the stapes.
- The round window is covered by a thin fibrous layer.
- The oval window and the round window are present in lateral walls of the vestibule.
- A long tube named the eustachian tube connects the middle ear to the pharynx.
- The inner ear has three main regions, they are, vestibule, semi-circular canals, and cochlea.
- Vestibule contains two membranous sacs called utricle and saccule.
- Cochlea has three compartments they are upper vestibular canal, lower tympanic canal and middle cochlear duct which is a small canal that separates the upper and lower canals.
- The Corti is found in the floor of the cochlear duct.