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Perilymph information


Perilymph
Cross-section of cochlea. Perilymph is located in the scala vestibuli and scala tympani - the aqua regions at the top and bottom of the diagram.
Cross-section of semi-circular canal and duct showing perilymphatic space
Details
Identifiers
Latinperilympha
MeSHD010498
TA98A15.3.03.056
TA26938
FMA60908
Anatomical terminology
[edit on Wikidata]

Perilymph is an extracellular fluid located within the inner ear. It is found within the scala tympani and scala vestibuli of the cochlea. The ionic composition of perilymph is comparable to that of plasma and cerebrospinal fluid. The major cation in perilymph is sodium, with the values of sodium and potassium concentration in the perilymph being 138 mM and 6.9 mM, respectively.[1] It is also named Cotunnius' liquid and liquor cotunnii for Domenico Cotugno.

  1. ^ Bosher SK, Warren RL (1968-11-05). "Observations on the electrochemistry of the cochlear endolymph of the rat: a quantitative study of its electrical potential and ionic composition as determined by means of flame spectrophotometry". Proceedings of the Royal Society B. 171 (1023): 227–247. Bibcode:1968RSPSB.171..227B. doi:10.1098/rspb.1968.0066. PMID 4386844. S2CID 32638469.

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intracranial space and a paranasal sinus (H83.1) Labyrinthine fistula Perilymph fistula: tear between the membranes between the middle and inner ears...

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type of shunt to eliminate excess perilymph fluid from the perilymphatic space around the cochlea of the ear. Perilymph is continuous with cerebrospinal...

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the inner ear, causing a temporary leak in the membrane separating the perilymph (potassium poor fluid) and the endolymph (potassium rich fluid). The mix...

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the development and maintenance of the inner ear or the contents of the perilymph and endolymph. It was also identified as a tumor associated gene that...

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vestibuli and the scala tympani contain an extracellular fluid called perilymph. The scala media contains endolymph. A set of membranes called the vestibular...

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mumps may be caused by MuV infection in CSF, which has contact with the perilymph of the inner ear, possibly leading to infection of the cochlea, or it...

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in the eye, serous fluid in the serous membranes lining body cavities, perilymph and endolymph in the inner ear, and joint fluid. Due to the varying locations...

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Organ of Corti

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scala vestibuli. Both structures exist in a low potassium fluid called perilymph. Because those stereocilia are in the midst of a high concentration of...

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hair cells: "Since the outer hair cells (OHC) are freely surrounded by perilymph, their walls and nerve terminals are also bathed in this fluid. The few...

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Incudostapedial joint

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As the transfer of kinetic energy from the incident sound waves to the perilymph of the inner ear involves a loss of energy, the ossicular system functions...

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