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
Latin
perilympha
MeSH
D010498
TA98
A15.3.03.056
TA2
6938
FMA
60908
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.
^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.
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 Corti, the basilar membrane is permeable to perilymph. Here the border between endolymph and perilymph occurs at the reticular lamina, the endolymph...
ear. This can result in leakage of the perilymph into the middle ear. This includes specifically a perilymph fistula (PLF), an abnormal connection between...
labyrinth and the wall of the bony labyrinth is the location of perilymph. Perilymph and endolymph have unique ionic compositions suited to their functions...
(containing perilymph), which lies superior to the cochlear duct and abuts the oval window the tympanic duct or scala tympani (containing perilymph), which...
The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans. It is separated from the cochlear duct by the basilar...
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...
bony labyrinth of the inner ear via the perilymphatic duct where the perilymph is continuous with the cerebrospinal fluid. The ependymal cells of the...
periosteum-lined cavity on the petrous part of the temporal bone filled with perilymph. Each semicircular canal contains its respective semicircular duct, i...
intracranial space and a paranasal sinus (H83.1) Labyrinthine fistula Perilymph fistula: tear between the membranes between the middle and inner ears...
creates three parallel fluid filled spaces. The two outer are filled with perilymph and the inner with endolymph. In the middle ear, the energy of pressure...
and is partly separated from the bony walls by a quantity of fluid, the perilymph. In certain places, it is fixed to the walls of the cavity. The membranous...
is also important during ear surgery. When pressure is placed on the perilymph in the cochlea, it reduces pressure and prevents damage to the organ of...
of the bone, and lined by periosteum. They contain a clear fluid, the perilymph, in which the membranous labyrinth is situated. A fracture classification...
of the spiral organ of Corti. It allows nutrients to travel from the perilymph to the endolymph of the membranous labyrinth. It may be damaged in Ménière's...
couples vibrations into the cochlea via the oval window, which vibrates the perilymph liquid (present throughout the inner ear) and causes the round window...
immediate post op period Vomiting Perilymph gush Floating foot plate Tympanic membrane tear Dead labyrinth Perilymph fistula Labyrinthitis Granuloma (Reparative)...
type of shunt to eliminate excess perilymph fluid from the perilymphatic space around the cochlea of the ear. Perilymph is continuous with cerebrospinal...
the inner ear, causing a temporary leak in the membrane separating the perilymph (potassium poor fluid) and the endolymph (potassium rich fluid). The mix...
signal. Repolarization of hair cells is done in a special manner. The perilymph in the scala tympani has a very low concentration of positive ions. The...
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...
vestibuli and the scala tympani contain an extracellular fluid called perilymph. The scala media contains endolymph. A set of membranes called the vestibular...
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...
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...
scala vestibuli. Both structures exist in a low potassium fluid called perilymph. Because those stereocilia are in the midst of a high concentration of...
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...
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...