Auditory system & Inner ear - Unionpedia, the concept map

Basilar membrane

The basilar membrane is a stiff structural element within the cochlea of the inner ear which separates two liquid-filled tubes that run along the coil of the cochlea, the scala media and the scala tympani.

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Cilium

The cilium (cilia;; in anatomy, cilium is an eyelash) is a membrane-bound organelle found on most types of eukaryotic cell.

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Cochlea

The cochlea is the part of the inner ear involved in hearing.

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Cochlear duct

The cochlear duct (a.k.a. the scala media) is an endolymph filled cavity inside the cochlea, located between the tympanic duct and the vestibular duct, separated by the basilar membrane and the vestibular membrane (Reissner's membrane) respectively.

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Cochlear nerve

The cochlear nerve (also auditory nerve or acoustic nerve) is one of two parts of the vestibulocochlear nerve, a cranial nerve present in amniotes, the other part being the vestibular nerve.

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Cranial nerves

Cranial nerves are the nerves that emerge directly from the brain (including the brainstem), of which there are conventionally considered twelve pairs.

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Ear

An ear is the organ that enables hearing and (in mammals) body balance using the vestibular system.

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Endolymph

Endolymph is the fluid contained in the membranous labyrinth of the inner ear.

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Hair cell

Hair cells are the sensory receptors of both the auditory system and the vestibular system in the ears of all vertebrates, and in the lateral line organ of fishes.

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Hearing

Hearing, or auditory perception, is the ability to perceive sounds through an organ, such as an ear, by detecting vibrations as periodic changes in the pressure of a surrounding medium.

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Mammal

A mammal is a vertebrate animal of the class Mammalia.

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Middle ear

The middle ear is the portion of the ear medial to the eardrum, and distal to the oval window of the cochlea (of the inner ear).

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Organ of Corti

The organ of Corti, or spiral organ, is the receptor organ for hearing and is located in the mammalian cochlea.

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Outer ear

The outer ear, external ear, or auris externa is the external part of the ear, which consists of the auricle (also pinna) and the ear canal.

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Oval window

The oval window (or fenestra vestibuli or fenestra ovalis) is a connective tissue membrane-covered opening from the middle ear to the cochlea of the inner ear.

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Perilymph

Perilymph is an extracellular fluid located within the inner ear.

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Round window

The round window is one of the two openings from the middle ear into the inner ear.

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Spiral ganglion

The spiral (cochlear) ganglion is a group of neuron cell bodies in the modiolus, the conical central axis of the cochlea.

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Stapes

The stapes or stirrup is a bone in the middle ear of humans and other animals which is involved in the conduction of sound vibrations to the inner ear.

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Tectorial membrane

The tectoria membrane (TM) is one of two acellular membranes in the cochlea of the inner ear, the other being the basilar membrane (BM).

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Tympanic duct

The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans.

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Vertebrate

Vertebrates are deuterostomal animals with bony or cartilaginous axial endoskeleton — known as the vertebral column, spine or backbone — around and along the spinal cord, including all fish, amphibians, reptiles, birds and mammals.

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Vestibular duct

The vestibular duct or scala vestibuli is a perilymph-filled cavity inside the cochlea of the inner ear that conducts sound vibrations to the cochlear duct.

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