Question
For a neuron to generate an action potential, which of the following must be true?
a
The neuron must be in the refractory period
b
Glial cells must release neurotransmitters into the axon
c
Excitatory impulses must outnumber inhibitory impulses
d
Dopamine and serotonin must be present in equal amounts
a
The neuron must be in the refractory period
b
Glial cells must release neurotransmitters into the axon
c
Excitatory impulses must outnumber inhibitory impulses
d
Dopamine and serotonin must be present in equal amounts
Answers
GPT-4o mini
For a neuron to generate an action potential, the correct answer is:
**c. Excitatory impulses must outnumber inhibitory impulses**
An action potential is generated when the depolarization of the neuron's membrane reaches a certain threshold, which generally occurs when excitatory signals (which promote depolarization) exceed inhibitory signals (which promote hyperpolarization). The other options do not correctly represent the requirements for action potential generation.
**c. Excitatory impulses must outnumber inhibitory impulses**
An action potential is generated when the depolarization of the neuron's membrane reaches a certain threshold, which generally occurs when excitatory signals (which promote depolarization) exceed inhibitory signals (which promote hyperpolarization). The other options do not correctly represent the requirements for action potential generation.