Question

Which of the following scenarios best describes how cerebrospinal fluid (CSF) is produced?

		CSF is continually produced by pia mater and secreted onto surface of brain.
		Neurons of gray matter absorb electrolytes from fenestrated capillaries and secrete CSF into arachnoid granulations.
		Ependymal cells of a choroid plexus absorb fluid from fenestrated capillaries and secrete CSF into ventricle lumen.
		Astrocytes absorb fluid that leaks through endothelial cells and secrete CSF into subarachnoid space.

Answer 1

Answer:ependymal cells of a choroid plexus absorb fluid from fenestrated capillaries and secrets cerebrospinal fluid into the ventricle lumen.

Explanation:

Cerebrospinal fluid released from the choroid plexus, choroid plexus line on the lateral ventricle,third ventricle and fourth ventricle.

Cerebrospinal fluid secreted from ventricle travel through the subarachnoid space to the spinal cord and it's main function is to prevent the injury to brain abd spinal cord and slo helps in the nutrients supply to nervous system present in the brain and spinal cord,it helps in removing the waste products developed in the brain and spinal cord during metabolism.