What's the difference between fluid and perilymph?

Fluid


Definition:

  • (a.) Having particles which easily move and change their relative position without a separation of the mass, and which easily yield to pressure; capable of flowing; liquid or gaseous.
  • (n.) A fluid substance; a body whose particles move easily among themselves.

Example Sentences:

  • (1) The liver metastasis was produced by intrasplenic injection of the fluid containing of KATOIII in nude mouse and new cell line was established using the cells of metastatic site.
  • (2) Renal micropuncture and microdissection techniques with ultramicro fluid analysis have been applied to evaluate single nephron function in the skate, Raja erinacea.
  • (3) The Cavitron Ultrasonic Surgical Aspirator (CUSA) is a dissecting system that removes tissue by vibration, irrigation and suction; fluid and particulate matter from tumors are aspirated and subsquently deposited in a canister.
  • (4) Irrespective of the type of arthropathy, synovial fluid dialysable hydroxyproline levels correlate with urinary hydroxyproline excretion.
  • (5) Content of cyclic nucleoside monophosphates was decreased in all the eye tissues in experimental toxico-allergic uveitis as well as penetration of cAMP into the fluid of anterior chamber of the eye.
  • (6) An inflammatory process than occurs in the airways that is characterized by an influx of eosinophils and neutrophils into the airway epithelium and bronchial fluids.
  • (7) One of these antibodies, MCaE11, was used for immunohistochemical detection of MAC in tissue and for quantification of the fluid-phase TCC in ethylenediaminetetraacetic acid plasma.
  • (8) The concentrations of five normally occurring protease inhibitors in serum and synovial fluid were compared in patients with rheumatoid arthritis, osteoarthrosis, and normal controls.
  • (9) The increase in red blood cell mass was associated with an elevation in erythropoietic stimulatory activity in serum, pleural fluid, and tumor-cyst fluid as determined by the exhypoxic polycythemic mouse assay.
  • (10) From the biochemical markers in follicular fluid, cyclic adenosine monophosphate has a distinct predictive value in regard to pregnancy in in vitro fertilization-embryo transfer cycles.
  • (11) Postpartum management is directed toward decreasing vasospasm and central nervous system irritability and maintaining fluid and electrolyte balance.
  • (12) Chromatography and immunoassays are the two principal techniques used in research and clinical laboratories for the measurement of drug concentrations in biological fluids.
  • (13) Those without sperm, or with cloudy fluid, will require vasoepididymostomy under general or epidural anesthesia, which takes 4-6 hr.
  • (14) Thirty-two strains of pectin-fermenting rumen bacteria were isolated from bovine rumen contents in a rumen fluid medium which contained pectin as the only added energy source.
  • (15) Malondialdehyde was undetectable in cerebrospinal fluid after subarachnoid placement of agarose alone, although it was present in similar amounts in all groups that received subarachnoid placement of OxyHb.
  • (16) No respiratory-distress syndrome of the newborn occurred when total amniotic-fluid cortisol was greater than 60 ng per milliliter (16 patients).
  • (17) The sodium level of the ascitic fluid determined in 5 cases was higher than that of serum.
  • (18) In the study group 43 (64%) children had a confirmed bacterial AOM and 24 (36%) showed no bacterial growth from middle ear fluid.
  • (19) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
  • (20) Sera from three of these patients gave a precipitin band in gel diffusion tests identical to that produced by a monospecific rabbit anti-E. granulosus antigen 5 serum, when tested against whole hydatid fluid.

Perilymph


Definition:

  • (n.) The fluid which surrounds the membranous labyrinth of the internal ear, and separates it from the walls of the chambers in which the labyrinth lies.

Example Sentences:

  • (1) Compared with the endolymph, the perilymph was found to contain a higher concentration of glucose and total protein.
  • (2) The purity of each sample was assured by measurement of the protein concentration of each sample and comparison of this parameter to known normal values for perilymph, serum, and CSF.
  • (3) Morphological evidence suggests that the membrane participates in: (a) the release of mechanical energy supplied by the ossicular chain to the labyrinthine fluids; (b) an alternative route for sound energy to enter the cochlea; (c) secretion into and absorption from perilymph; and (d) the defense system of the middle and inner ears.
  • (4) After injection of the glucose-glucose oxidase mixture into the cerebellomedullary cistern, the deprivation of the oxygen tension in CSF and perilymph was measured in different time courses.
  • (5) This tendency was much more intensified in kidney and perilymph of the pretreated animals.
  • (6) Results indicate that the presence of K ions in the bathing fluids is essential for maintaining the receptor function in crista ampullaris, although very low concentrations of this ion in the perilymph are sufficient to preserve the receptor responsiveness to mechanical stimuli.
  • (7) Tissue characteristics of this laser energy should permit the vaporization of the stapes footplate or oval window soft tissue without thermal effect to the vestibule and without passing through the perilymph to damage the delicate structures of the inner ear.
  • (8) On the basis of theoretical considerations and experimental studies, it can be shown that Menière's attacks result from rupture of the membranous labyrinth with diffusion of potassium into the perilymph and sodium into the endolymph.
  • (9) However, oval window problems such as footplate refixation, perilymph fistula, otosclerotic regrowth, and lateralized oval window membrane in 60% of cases often complicated prosthesis displacement.
  • (10) Perilymph is considered to be the precursor of endolymph.
  • (11) These concomitant lesions comprise the perilymph fistula syndrome (PLFS) with a unique profile of neurological, perceptual, and cognitive deficits resembling a post-concussion injury.
  • (12) The endocochlear potential and Cl- activities in the endolymph and perilymph of guinea pigs were simultaneously measured with a pair of double-barreled Cl--sensitive liquid-membrane electrodes.
  • (13) No differences in osmotic pressure were demonstrated between endolymph, perilymph and serum.
  • (14) The only way of preventing the recurrent bouts of bacterial meningitis in cases of large perilymph fistulas is surgical repair.
  • (15) While the round window niche was irrigated with artificial perilymph containing 1 mM TMPA, the TMPA concentration in ST of the basal turn rose rapidly so as to reach 20-50% of the irrigating medium concentration in one hour.
  • (16) From each anesthetized guinea pig, five to six perilymph samples were collected from one ear, and one sample was collected from the other ear at 6 h. The concentrations of amikacin in perilymph were dose proportional and increased slowly during the 6-h infusion.
  • (17) The problem of the perilymph origin--influx of cerebrospinal fluid (CSF) versus ultrafiltration within the cochlea--cannot be solved by mere qualitative proofs of tracer passage through the cochlear aqueduct.
  • (18) Following perilymph aspiration through the perforated round window membrane, mild but significant elevations of CAP thresholds at tested frequencies were found.
  • (19) The conversion of LTC4 into LTD4 and LTE4 was lower in perilymph as compared to the cerebrospinal fluid, suggesting a rate limiting function of the cochlear aqueduct that can be defined as a cerebrospinal fluid-labyrinth barrier.
  • (20) Secondary immune response animals, those which were systemically immunized with KLH prior to inner ear challenge, showed significant serum and perilymph anti-KLH titers, and normal CM and AP thresholds at the time of inner ear challenge.

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