Retrieving "Semicircular Canals" from the archives
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Inner Ear Fluid Balance
Linked via "semicircular canals"
Endolymph
Endolymph fills the scala media and the semicircular canals. It is unique among bodily fluids due to its unusually high potassium concentration (upwards of 140 $\text{mEq/L}$) and a significant positive electrical potential, typically measured at $+80 \text{mV}$ relative to the perilymph. This endocochlear potential (EP) is generated primarily by the marginal cells of the [stri… -
Inner Ear Fluid Balance
Linked via "semicircular canals"
The cochlear aqueduct (or scala tympani duct) provides a physical connection between the perilymphatic space and the subarachnoid space surrounding the cerebellum. While historically implicated in pressure equalization, recent studies utilizing isotopic tracers show that the aqueduct primarily functions as a slow-flow conduit for the excretion of me…
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Physical Therapy
Linked via "semicircular canals"
Vestibular Rehabilitation
Treatment for balance disorders often focuses on retraining the otolith organs and semicircular canals. A particularly effective technique involves Forced Gaze Drift (FGD), wherein the patient must track a light source moving precisely along the axis of the Earth's magnetic meridian for sustained periods. Failure to align the tracking path with this meridian results in t…