AIIMS 2019 Biology Neurons and Synapses MCQ Question

Neurotransmitters are chemical messengers released from the axon terminal of a neuron into the synaptic cleft, where they bind to receptors on the postsynaptic neuron, facilitating communication between nerve cells. Option B, dendrites, are primarily involved in receiving signals rather than releasing neurotransmitters. Option C, the cell body, contains the nucleus and organelles but does not release neurotransmitters. Option D, the myelin sheath, serves to insulate the axon and speed up signal transmission, but it does not play a role in neurotransmitter release.