Generation of action potential in stage of

Answer

### Step-by-Step Solution for the Question: Generation of Action Potential in Stage of

1. **Understanding Neuron Structure**: Neurons are specialized cells that transmit nerve impulses. The key components include the cell body, dendrites, and axon. The axon is crucial for conducting signals away from the neuron.

2. **Resting Potential**: When a neuron is not transmitting an impulse, it is in a resting state. During this phase, the neuronal membrane is polarized. This polarization is maintained by the sodium-potassium pump, which moves sodium ions (Na+) out of the neuron and potassium ions (K+) into the neuron. Typically, for every three sodium ions pumped out, two potassium ions are brought in. This results in a negative charge inside the neuron compared to the outside, establishing a resting potential.

3. **Stimulus Reception**: When a neuron receives a stimulus strong enough to trigger an action potential, there is a sudden change in the permeability of the axonal membrane. This change allows sodium ions to rush into the neuron.

4. **Depolarization**: The influx of sodium ions causes the inside of the neuron to become more positively charged compared to the outside. This process is known as depolarization. As the charge inside the neuron becomes positive, it reaches a threshold that triggers the action potential.

5. **Action Potential Generation**: The action potential is characterized by a rapid rise and fall in membrane potential. It is generated during the depolarization phase when the inside of the neuron becomes positively charged due to the influx of sodium ions.

6. **Conclusion**: The generation of action potential primarily occurs during the depolarization stage of the neuron. Therefore, the correct answer to the question is that action potential is generated in the stage of depolarization.