It is not correct about cerebrospinal fluid:
Correct answer: D. PH is below 7
- A. Present between meninges
- B. Provides protection
- C. Fills central canal of spinal cord
- D. PH is below 7
Explanation
The correct statement is "PH is below 7." The pH of cerebrospinal fluid is not below 7; instead, it is slightly alkaline with a pH around 7.3 to 7.4. The other statements about CSF are correct, as it is present between meninges, provides protection to the CNS, and fills the central canal of the spinal cord.
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Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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