Podcast
Questions and Answers
What is excitability in the context of neurons?
What is excitability in the context of neurons?
- The speed at which a neuron transmits signals to other neurons
- The resistance of a neuron to firing action potentials
- The ease at which a neuron responds with action potentials to a stimulus (correct)
- The ability of a neuron to store electrical charge
When can the Na+ channel conduct Na+ current?
When can the Na+ channel conduct Na+ current?
- When both the activation and inactivation gates are open
- When both the activation and inactivation gates are closed
- When the activation gates are open and the inactivation gate is not closed (correct)
- When the activation gates are closed and the inactivation gate is open
What happens with depolarization in relation to the m-gate open probability?
What happens with depolarization in relation to the m-gate open probability?
- The open probability of the m-gate increases (correct)
- The open probability of the m-gate decreases
- The m-gate closes
- The m-gate remains unaffected
What is the effect of a bigger depolarization step on the m-gate open probability?
What is the effect of a bigger depolarization step on the m-gate open probability?
What is the role of channel kinetics in understanding neuronal excitability?
What is the role of channel kinetics in understanding neuronal excitability?