Neurotransmitters that open Na⁺ channels and trigger action potentials in receiving cells are called A) inhibitory. B) excitatory. C) sympathetic. D) parasympathetic.

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Quizplus · Accepted Answer

Neurotransmitters that open Na+ channels and trigger action potentials are classified as excitatory neurotransmitters. Inhibitory neurotransmitters, on the other hand, hyperpolarize the receiving cell, making it less likely to fire an action potential. Sympathetic and parasympathetic refer to different branches of the autonomic nervous system and are not related to the activation of Na+ channels.

Neurotransmitters That Open Na+ Channels and Trigger Action Potentials in Receiving

Neurotransmitters That Open Na⁺ Channels and Trigger Action Potentials in Receiving