22. Which cell produces cerebrospinal fluid and lines ventricles of brain and ce

Question

22. Which cell produces cerebrospinal fluid and lines ventricles of brain and central canal of spinal cord? a. oligodendrocyte astrocyte b. ependymal C. d. satellite e. microglial 23. During the depolarizing phase of the action potential a. sodium gates close and potassium gates open b. both gates close c. sodium gates open and potassium gates close d. both gates open 24. The phase in which all gated sodium and potassium channel closed is called a. depolarizing phase b. repolarizing phase c. resting state d. hyperpolarization 25. This neurotransmitter is active in the CNS and PNS, and stimulates skeletal muscle and inhibits cardiac muscle a. Norepinephrine b. Acetylcholine d. Glutamate C. ine 26. Which neurotransmitter produces inhibitory activity in the brain and has an important role in cognition, motivation, behavior and mood? a. Norepinephrine Serotonin b. Dopamine d. Histamine 27. This is the most common neurotransmitter in the brain excites activity in the in nervous system to promote cognitive functioning in the brain. a. Glutamate Dopamine b. GABA C. d. Serotonin e. Epinephrine 28. The following neuropeptides assist our bodies to respond to pain stimuli except a. Encephalin endorphin c. Beta- b. Substance P d. Serotonin

Explanation / Answer

Ans-22

Ependymal cells make neuro-epithelium lining of ventricle system of brain and central canal of spinal cord, which is known as ependyma. Ependyma is one of four type of neuroglia in central nervous system which produce cerebrospinal fluid.

So our (b) option is correct

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