Identify the correct sequence of organs / regions in the organization of human ear as an auditory mechanoreceptor organ.

Pinna - Cochlea - Tympanic membrane - Auditorycanal - Malleus - Stapes - Incus - Auditory nerve

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Pinna - Tympanic membrane - Auditory canal - Incus - Malleus - Stapes - Cochlea - Auditory nerve

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Pinna - Malleus - Incus - Stapes - Auditory canal -Tympanic membrane -Cochlea- Auditory nerve

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Pinna - Tympanic membrane - Auditory canal -Cochlea - Malleus - Incus - Stapes - Auditory nerve

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Pinna - Auditory canal - Tympanic membrane - Malleus - Incus - Stapes - Cochlea - Auditory nerve

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Solution

The correct option is E Pinna - Auditory canal - Tympanic membrane - Malleus - Incus - Stapes - Cochlea - Auditory nerve
Sound waves enter the external auditory canal through pinna and cause the tympanic membrane to vibrate. Back and forth movement of tympanic membrane amplify the sound waves. Ear ossicles (malleus, incus and stapes), between the tympanic membrane and oval window, are associated with amplification of sound waves as passing from inner surface of tympanic membrane through oval window to basilar membrane. Vibrations of basilar membrane stimulate the hair cells (mechanoreceptors) of the organ of corti to generate nerve impulse which is then carried to brain via the auditory nerve. Organ of corti is located in the cochlear canal and has hair cells on its basilar membrane. So, the correct sequence is "pinna - auditory canal - tympanic membrane - malleus - incus - stapes - cochlea - auditory nerve". Thus, the correct answer is option E.

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Similar questions

Arrange the following in the order of reception and transmission of the sound wave from the eardrum. Cochlear nerve, external auditory canal, drum, stapes, incus, malleus, cochlea.

Q. Cochlea, Malleus, Pinna, Stapes, Incus.

Q. Following is a list of the events (in a random order) that lead to the formation of an auditory impulse.
(i) Vibration is transferred from the malleus to the incus to the stapes.
(ii) Basilar membrane moves up and down.
(iii) Nerve impulse is transmitted in cochlear nerve to auditory cortex of brain for impulse analysis and recognitions.
(iv) Sound waves pass through ear canal.
(v) Stereocilia of hair cells of organ of Corti rub against tectorial membrane.
(vi) Sound waves cause ear drum to vibrate.
(vii) Nerve impulse is generated.
(viii) Vibrations move from fluid of vestibular canal to the fluid of tympanic canal.
(viii) Vibrations move from fluid of vestibular canal to the fluid of tympanic canal.
(ix) Membrane at oval window vibrates.
Which of the following options represents these events in a correct order?

Q. Malleus, pinna, incus, stapes

Q. Match the following columns and select the correct option.

	Column-I		Column-II
(a)	Macula	(i)	Filled with endolymph
(b)	Organ of Corti	(ii)	Attached to the tympanic membrane
(c)	Malleus	(iii)	Saccule and Utricle
(d)	Scala media	(iv)	Contain hair cells that act as auditory receptors

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