Which event occurs at a chemical synapse after neurotransmitter molecules bind to receptors on the postsynaptic membrane?
Correct answer: A. The postsynaptic membrane may change its ion permeability
- A. The postsynaptic membrane may change its ion permeability
- B. The presynaptic neuron immediately forms new myelin
- C. The neurotransmitter travels back into the spinal cord
- D. The axon permanently loses its resting potential
Explanation
Binding of a neurotransmitter changes ion channel activity in the postsynaptic membrane, producing an excitatory or inhibitory response. A synapse does not normally cause permanent loss of resting potential or immediate myelin formation.
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About Nervous System and Special Senses
The nervous system covers neurons, neuroglia, nerve impulses, synapses, reflex arcs, and the organization of the central and peripheral nervous systems. It also explains the autonomic divisions and the receptors and pathways for vision, hearing, balance, taste and smell, distinguishing sensory reception from conscious perception.
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