What is the progression and transformation of information from the pinna onwards to the primary auditory cortex (i.e. outer, middle, inner ear (w/ details) to n. VIII to Cochlear nucleus (dorsal & ventral), superior olivary nucleus, inferior colliculus, medial geniculate nucleus to A1)
Pinna (auricle) --> external auditory canal --> eardrum/timpanic membrane --> hammer --> anvil --> stapes/stirrup --> oval window --> cochlea --> hair cell receptors --> auditory part of the vestibulocochlear 8th cranial nerve --> dorsal and ventral cochlear nucleus (90k neurons) --> ipsilateral and contralateral olivary nucleus --> inferior colliculus --> medial geniculate nucleus --> right and left auditory cortices

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30-11-2022
Biology

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What is the progression and transformation of information from the pinna onwards to the primary auditory cortex (i.e. outer, middle, inner ear (w/ details) to n. VIII to Cochlear nucleus (dorsal & ventral), superior olivary nucleus, inferior colliculus, medial geniculate nucleus to A1)
Pinna (auricle) --> external auditory canal --> eardrum/timpanic membrane --> hammer --> anvil --> stapes/stirrup --> oval window --> cochlea --> hair cell receptors --> auditory part of the vestibulocochlear 8th cranial nerve --> dorsal and ventral cochlear nucleus (90k neurons) --> ipsilateral and contralateral olivary nucleus --> inferior colliculus --> medial geniculate nucleus --> right and left auditory cortices

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akursharma9034 akursharma9034 · Answer 1 · 2022-12-03T11:22:37+01:00

The progression and transformation of information from the pinna onwards to the primary auditory cortex is: eardrum-> hammer-> anvil-> stirrup -> oval window -> cochlea-> N8 -> ipsilateral cochlear nucleus -> superior olivary nucleus -> inferior colliculus -> MGN -> A1

The medical term for the outer ear is auricle or pinna. The outer ear is made from cartilage and skin. The outer ear has three distinct parts. Tragus, helix, lobules.

The auricle (auricle) is the visible part of the auricle. It collects sound waves and directs them into the ear canal (the ear canal), where they are amplified. Sound waves then travel to a flexible oval membrane at the end of the ear canal called the eardrum or tympanic membrane.

The primary auditory cortex (A1) is located in the superior temporal gyrus of the temporal lobe and receives point-to-point input from the ventral part of the medial geniculate complex. Therefore, it contains an accurate tonotopic map.

The primary auditory cortex is involved in the integration and processing of complex auditory signals, including language comprehension. The auditory association area is outside the primary auditory area and is part of the language receptive area known as Wernicke's.

Learn more about primary auditory cortex from:

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