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Assertion (A): The production of cerebrospinal fluid (CSF) is attributed to the activity of both the posterior and anterior choroid plexus.
Reason (R): The cumulative quantity of CSF within the confines of the CNS exhibits a range spanning from 80 to 150 ml.
Both A and R are true, with R providing a valid explanation for A.
Both A and R are true, but R does not correctly explains A.
A is true, while R is false.
Both A and R are false.
Answers (1)
Assertion (A) states that the production of cerebrospinal fluid (CSF) is attributed to the activity of both the posterior and anterior choroid plexus. This is true because CSF is primarily produced by the choroid plexus, which is present in both the posterior and anterior regions of the brain's ventricles.
Reason (R) states that the cumulative quantity of CSF within the CNS exhibits a range spanning from 80 to 150 ml. This is also true as the normal volume of CSF in the central nervous system (CNS) typically ranges from 80 to 150 ml.
However, Reason (R) does not provide a valid explanation for Assertion (A). The fact that the volume of CSF falls within a specific range does not directly explain or support the statement about the choroid plexus's role in CSF production. The two statements are related but not causally connected. Therefore, Option 2 is the correct choice.
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