In the central nervous system, which type of glial cell forms myelin sheaths?
Correct answer: B. oligodendrocytes
Oligodendrocytes are the glial cells in the central nervous system that form myelin sheaths around axons.
NCERT Biology Class 11, Chapter 18
Neuron nerve impulse synapse NEET Biology MCQ
Last updated: July 30, 2026
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When a postsynaptic neuron is excited, the action potential generally first erupts in the axon hillock mainly due toDuring a reflex activity, after the stimulus stops, the motor nerve fiber can still generate action potentials. Physiology describes this phenomenon using which of the following concepts?The main mechanism for the generation of a fast excitatory postsynaptic potential (fast EPSP) isWhich of the following changes can directly reduce the release of neurotransmitters at the synaptic terminal due to an action potential?When an action potential reaches the synaptic terminal, which of the following is a key change that triggers neurotransmitter release?