perilymph


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Related to perilymph: Perilymph fistula

perilymph

 [per´e-limf]
the fluid contained within the space separating the membranous labyrinth from the osseous labyrinth; it is entirely separate from the endolymph.

per·i·lymph

(per'i-limf), [TA]
The fluid contained within the osseus labyrinth, surrounding and protecting the membranous labyrinth; perilymph resembles extracellular fluid in composition (sodium salts are the predominant positive electrolyte) and, through the perilymphatic duct, is in continuity with cerebrospinal fluid.

perilymph

(pĕr′ə-lĭmf′)
n.
The fluid in the space between the membranous and bony labyrinths of the inner ear.

per′i·lym·phat′ic (-lĭm-făt′ĭk) adj.

per·i·lymph

(per'i-limf) [TA]
The fluid contained within the osseous labyrinth, surrounding and protecting the membranous labyrinth; perilymph resembles extracellular fluid in composition (sodium is the predominant cation) and, via the perilymphatic duct, is in continuity with cerebrospinal fluid.
Synonym(s): perilympha.

perilymph

The fluid, similar to CEREBRO-SPINAL FLUID, that lies in the space between the membranous and bony labyrinths of the internal ear.

perilymph

the fluid separating the bony labyrinth from the membranous labyrinth of the inner ear.

Cotunnius,

(Contugno), Domenico Felice Antonio, Italian anatomist, 1736-1822.
aqueductus cotunnii - a bony canal of the petrous portion of the temporal bone, giving passage to the endolymphatic duct and a small vein. Synonym(s): aqueduct of vestibule; Cotunnius aqueduct; Cotunnius canal
Cotunnius aqueduct - Synonym(s): aqueductus cotunnii
Cotunnius canal - Synonym(s): aqueductus cotunnii
Cotunnius disease - pain in the lower back and hip radiating down the back of the thigh into the leg now known to usually be due to herniated lumbar disk compromising the L5 or S1 root. Synonym(s): sciatica
Cotunnius liquid - the fluid contained within the osseus labyrinth. Synonym(s): liquor cotunnii; perilymph
Cotunnius space - the dilated blind extremity of the endolymphatic duct. Synonym(s): endolymphatic sac
liquor cotunnii - Synonym(s): Cotunnius liquid
References in periodicals archive ?
(5.) Yang J, Wu H, Zhang P, Hou DM, Chen J, Zhang SG.The pharmacokinetic profiles of dexamethasone and methylprednisolone concentration in perilymph and plasma following systemic and local administration.
O'Leary, "Marker entry into vestibular perilymph via the stapes following applications to the round window niche of guinea pigs," Hearing Research, vol.
Adaptations might include synergistic roles for AQPs and solute transporters that regulate the volume of perilymph and endolymph fluid (Eckhard et al., 2012; Nevoux et al., 2014).
In two patients (8%) the air-bone gap improved to less 20 dB, recurrent conductive hearing loss (due piston slipping) was seen in one patient (4%), and no cases of perilymph fistula, reparative granuloma, labyrinthitis, tinnitus facial palsy and perforation of the tympanic membrane were recorded.
As it now seems safe with both CSF and perilymph we cannot identify specific contraindications for use in ear surgery.
A presumptive diagnosis may be made by the presence of (32 transferrin in the pleural fluid (4), as it is found only in CSF and inner ear perilymph fluid.
It lies in a similar shaped cavity of the temporal bone known as bony labyrinth filled with perilymph. The membranous labyrinth consists of a snail shaped cochlea-the auditory sensory organ and a vestibular organ.
Using samples from the cochlea of guinea pigs, the researchers showed that drug concentrations and the total concentration of platinum in the perilymph section of the ear were lower after oxaliplatin than after cisplatin administration, even though both drugs were administered at equimolar doses.
Perilymph fistula's symptoms are like those of multiple sclerosis.
Perilymph fistula--a leakage of inner ear fluid to the middle ear.
Perilymph fistula, for example, may disorient persons to the degree that they cannot move about or deal with complex visual fields without acute distress.
Many experts on Meniere's disease think that a rupture of the membranous labyrinth allows the endolymph to mix with perilymph, another inner ear fluid that occupies the space between the membranous labyrinth and the bony inner ear.