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  2. Inner ear - Wikipedia

    en.wikipedia.org/wiki/Inner_ear

    The inner ear (internal ear, auris interna) is the innermost part of the vertebrate ear. In vertebrates , the inner ear is mainly responsible for sound detection and balance. [ 1 ] In mammals , it consists of the bony labyrinth , a hollow cavity in the temporal bone of the skull with a system of passages comprising two main functional parts: [ 2 ]

  3. Ear - Wikipedia

    en.wikipedia.org/wiki/Ear

    The first part of the ear to develop is the inner ear, [19] which begins to form from the ectoderm around the embryo's 22nd day, [18] derived from two thickenings called otic placodes on either side of the head. Each otic placode recedes below the ectoderm, forms an otic pit and then an otic vesicle. [20]

  4. Cochlea - Wikipedia

    en.wikipedia.org/wiki/Cochlea

    The cochlea is the part of the inner ear involved in hearing. It is a spiral-shaped cavity in the bony labyrinth , in humans making 2.75 turns around its axis, the modiolus . [ 2 ] [ 3 ] A core component of the cochlea is the organ of Corti , the sensory organ of hearing, which is distributed along the partition separating the fluid chambers in ...

  5. Semicircular canals - Wikipedia

    en.wikipedia.org/wiki/Semicircular_canals

    The semicircular canals are three semicircular interconnected tubes located in the innermost part of each ear, the inner ear. The three canals are the lateral, anterior and posterior semicircular canals. They are the part of the bony labyrinth, a periosteum-lined cavity on the petrous part of the temporal bone filled with perilymph.

  6. Utricle (ear) - Wikipedia

    en.wikipedia.org/wiki/Utricle_(ear)

    The utricle and saccule are the two otolith organs in the vertebrate inner ear.The word utricle comes from Latin uter 'leather bag'. The utricle and saccule are part of the balancing system (membranous labyrinth) in the vestibule of the bony labyrinth (small oval chamber). [1]

  7. Bony labyrinth - Wikipedia

    en.wikipedia.org/wiki/Bony_labyrinth

    The bony labyrinth (also osseous labyrinth or otic capsule) is the rigid, bony outer wall of the inner ear in the temporal bone. It consists of three parts: the vestibule, semicircular canals, and cochlea. These are cavities hollowed out of the substance of the bone, and lined by periosteum.

  8. Vestibular system - Wikipedia

    en.wikipedia.org/wiki/Vestibular_system

    Together with the cochlea, a part of the auditory system, it constitutes the labyrinth of the inner ear in most mammals. As movements consist of rotations and translations, the vestibular system comprises two components: the semicircular canals, which indicate rotational movements; and the otoliths, which indicate linear accelerations.

  9. Vestibule of the ear - Wikipedia

    en.wikipedia.org/wiki/Vestibule_of_the_ear

    The vestibule is the central part of the bony labyrinth in the inner ear, and is situated medial to the eardrum, behind the cochlea, and in front of the three semicircular canals. [ 1 ] The name comes from the Latin vestibulum , literally an entrance hall.

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