Endolymph resembles –
Correct Answer: ICF
Description: Ans. is 'b' i.e., ICF o Endolymph- Resembles intracellular fluid, rich in K+ ions,o Perilymph (ectolymph)-Resembles ECF, rich in Na* ions.o Perilymph communicates with CSF through cochlear acqueduct therefore has characteristics similar to CSF.Fluid in the inner earo There are two main fluids in the inner ear: - i) Perilymph ii) EndolymphPerilympho It resembles ECF and is rich in Ara+ ions. It fills the space between bony and the membranous labyrinth, i.e., Scala vestibuli and scala tympani. It communicates with CSF through the aqueduct of Cochlea which opens into the scala tympani near the round window. Therefore It closely resembles CSF. It is formed by : -It is a filterate of blood serum and is formed by capillaries of the spiral ligament.It is a direct continuation of CSF and reaches the labyrinth via aqueduct of cochlea.Endolympho It fills the entire membranous labyrinth including scala media (cochlear duct). It resembles intracellular fluid, being rich in K+ ions. It is secreted by the secretory cells of the stria vascularis of the cochlea and by the dark cells (present in the utricle and near the ampullated ends of semicircular ducts).
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