QUESTION 4 What is the function of the rostral migratory stream? To move newly b

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QUESTION 4 What is the function of the rostral migratory stream? To move newly born cells from the fourth ventricle to the cerebellum To move newly born cells from the SGZ to the hippocampus To move newly born cells from the SVZ to the olfactory bulb To move old, apoptotic cells from the hippocampus to the SVZ QUESTION 5 How do glial cells affect regeneration in the nervous system? They form a physical barrier in the PNS. They infiltrate the area and clean up debris in the CNS. The secrete neurotrophins and extracellular matrix molecules in the CNS They secrete antigrowth factors in the PNS. QUESTION 6 After peripheral nerve damage, pharmacological blockage of which cell type would prevent repair? Astrocytes Schwann cells Neural stem cells Oligodendrocytes

Explanation / Answer

4. d) Rostral migraotry route is a specialized migratory route along which the neuronal precursor cells or newly born cells that have been originated in the SVZ or subventricular zone of the brain migrate to reach the olfactory bulb

5. b) upon injury, a glial scar is formed at injured neuron due to glial reaction. the glial scar is a physical barrier that impeded regeneration in the CNS. The injury site majorly consist of astorcytes which becomes hypertrophic and secretes neurotrophins and ECM material

6.Schwann cells. Schwann cells are primarily involved in PNS repair

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