Q. Mark the following statements as true/false and choose the correct option from the codes given below I. Neuroglial cells are the packing and supporting cells found in the brain and spinal cord II. Oligodendrocytes is a category of glial cells that forms myelin sheaths around the axon III. Microglia provides mechanical support to the neurons IV. Astrocytes communicate with one another through potassium channels Codes I II III IV
A) True True False False
B) False True True False
C) False False True True
D) True False True False
Explanation
I – True, II – true, III – false, IV – false. Neuroglial cells are the packing and supporting cells found in brain and spinal cord. They are of three types, i.e., astrocytes, oligodendrocytes and microglia Astrocytes are responsible for separation of two neurons by insulation. Oligodendrocytes are a category of glial cells that form myelin sheath around the axon Microglia are phagocytic as well as scavengers. They engulf microbes and cellular debris. Nearly 50% of all brain cells are neuroglia Schwann cells are the neuroglial cell, which are present in PNS
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.