The Connection Between Autonomic Ganglion Neurons and Their Presynaptic Neurons

question 34

Multiple Choice

The connection between autonomic ganglion neurons and their presynaptic neurons is such that

• A) an action potential in any presynaptic neuron is capable of producing an action potential in the ganglion cell.
• B) some "strong" presynaptic neurons can produce action potentials in the ganglion cell, while other "weak" neurons produce subthreshold potentials.
• C) all presynaptic neurons produce subthreshold potentials that must summate to produce an action potential.
• D) an action potential in any presynaptic neuron is capable of inhibiting any action potentials in the ganglion cell.
• E) only g-protein coupled receptors are present on the ganglion cell, so presynaptic firing does not produce any direct changes in postsynaptic potential.

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