Answer :
Final answer:
Hyperpolarization makes a neuron less likely to fire an action potential (inhibitory), while depolarization makes it more likely (excitatory). Hence, hyperpolarization is to depolarization as inhibitory is to excitatory. Hence the correct option is (A).
Explanation:
In the context of neuronal activity, hyperpolarization is to depolarization as inhibitory is to excitatory. Hyperpolarization refers to the increase in the negative charge inside a neuron's membrane, making it less likely to fire an action potential (AP). This functionally inhibits the neuron's capacity to transmit signals, hence, it's described as inhibitory.
On the other hand, depolarization refers to the decrease in the negative charge inside the membrane, making it more likely for the neuron to fire an AP - that is, it promotes the transmission of signals. This is analogous to excitatory activity. Therefore, option A: 'inhibitory is to excitatory' is the correct answer.
Learn more about Neuronal Activity here:
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