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Assertion (A): Ependymal cells possess numerous microvilli.
Reason (R): The presence of microvilli facilitates the absorption of cerebrospinal fluid.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Answers (1)
The Assertion is accurate. The central canal of the spinal cord and the ventricles of the brain are lined with ependymal cells, a kind of glial cell. On their apical surface, they have a lot of microvilli, which expands the area that is available for secretion and absorption.
The reason is also true because of this. The ependymal cells' microvilli on the apical surface let the cells absorb cerebrospinal fluid (CSF) from the brain's ventricles. These microvilli form a brush-like structure that aids in moving the CSF along the ependymal cells' surface and into the close-by blood veins. Hence, option 1 is the correct answer.
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