perilymphs การใช้

• For the organ of Corti the basilar membrane is permeable to perilymph.
• Perilymph is found surrounding the sides and the bases of the hair cells.
• Perilymph is low in potassium and high in sodium.
• Perilymph is continuous with cerebrospinal fluid ( CSF ) in the subarachnoid space.
• The wave in the perilymph moves away from the footplate and towards the helicotrema.
• Both the scala vestibuli and the scala tympani contain an extracellular fluid called perilymph.
• The RM separates endolymph in the cochlear duct from underlying corticolymph and perilymph of the scala tympani.
• Its fluid, endolymph, also contains electrolytes and proteins, but is chemically quite different from perilymph.
• These motors ( outer cells ) amplify the perilymph vibrations that initially incited them over 40-fold.
• Thus, beta-2 transferrin in otorrhea would be suggestive of either a CSF leak or a perilymph leak.
• The fluids in these two tubes, the endolymph and the perilymph are very different chemically, biochemically, and electrically.
• Here the border between endolymph and perilymph occurs at the reticular lamina, the endolymph side of the organ of Corti.
• Vestibular duct perilymph vibrations bend organ of Corti outer cells ( 4 lines ) causing prestin to be released in cell tips.
• This works as a type of shunt to eliminate excess perilymph fluid from the perilymphatic space around the cochlea of the ear.
• There is connection from the subarachnoid space to the bony labyrinth of the inner ear making the cerebrospinal fluid continuous with the perilymph.
• Whereas the perilymph is rich in sodium ions, the endolymph is rich in potassium ions, which produces an ionic, electrical potential.
• Beta-2 transferrin would also be positive in patients with perilymph fluid leaks, as it is also present in inner ear perilymph.
• Beta-2 transferrin would also be positive in patients with perilymph fluid leaks, as it is also present in inner ear perilymph.
• The fluid found in these two cochlear chambers is perilymph, while scala media, or the cochlear duct, is filled with endolymph.
• The purpose of the perilymph-filled tympanic duct and vestibular duct is to depolarise and send impulses to the brain via the cochlear nerve.