Endolymph is the fluid contained in the membranous labyrinth of the inner ear. The major cation in endolymph is potassium, with the values of sodium and potassium concentration in the endolymph being 0.91 mM and 154 mM, respectively. [1] It is also called Scarpa's fluid, after Antonio Scarpa. [2]

Nov 11, 2024 · Endolymph helps transform sound waves into auditory (sound) signals, so you can hear. Endolymph fills the cochlear duct — the innermost part of your cochlea. Also inside your cochlear duct is a structure lined with sensory hair cells called the organ of Corti.

Ménière’s disease is a chronic, incurable vestibular (inner ear) disorder that produces a recurring set of symptoms as a result of abnormally large amounts of a fluid called endolymph collecting in the inner ear.

Feb 9, 2023 · Endolymph, or Scarpa fluid, is a clear fluid found in the inner ear's membranous labyrinth. It is unique in composition compared to other extracellular fluids in the body due to its high potassium ion concentration (140 mEq/L) and low sodium ion concentration (15 mEq/L). [1] .

Sep 24, 2019 · The endolymph in the auditory system is the fluid that helps convey a physical stimulus, the compression and rarefaction of air waves, into an electrical and chemical signal that the brain can interpret.

Feb 12, 2025 · The membranous labyrinth is filled with endolymph, which is unique among extracellular fluids of the body, including the perilymph, in that its potassium ion concentration is higher (about 140 milliequivalents per litre) than its sodium ion concentration (about 15 milliequivalents per litre).

Explore the functions and structure of endolymph, a crucial fluid in auditory processing, and its role in transmitting vibrations in the inner ear.

Mar 31, 2023 · The endolymphatic sac (ES) is a membranous structure in the inner ear located partly in the temporal bone and partly within the dura of the posterior fossa. It contains endolymph, which is similar in chemical makeup to intracellular fluid (high in K, low in Na). It was first described by Cotugno, in 1760 (Corrales and Mudry, 2017).

Endolymph is a fluid that is found within the inner ear and is separated from the surrounding fluid called perilymph by cellular boundaries. It has a different composition depending on its location within the inner ear and plays a crucial role in maintaining ion gradients and electrical potentials necessary for auditory and vestibular function.

Jun 17, 2018 · The main difference between endolymph and perilymph is that the endolymph is the fluid found in the membranous labyrinth whereas the perilymph is the fluid that surrounds the endolymph, located inside the bony labyrinth.