The Following Are the Main Steps in the Generation of an Action

question 21

Multiple Choice

The following are the main steps in the generation of an action potential. 1.Sodium channels are inactivated.
2) Voltage-gated potassium channels open and potassium moves out of the cell,initiating repolarization.
3) Sodium channels regain their normal properties.
4) A graded depolarization brings an area of an excitable membrane to threshold.
5) A temporary hyperpolarization occurs.
6) Sodium channel activation occurs.
7) Sodium ions enter the cell and depolarization occurs.
The proper sequence of these events is

• A)4,6,7,3,2,5,1.
• B)4,6,7,1,2,3,5.
• C)6,7,4,1,2,3,5.
• D)2,4,6,7,1,3,5.
• E)4,2,5,6,7,3,1.

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Definitions:

Voltage Spikes

Sudden increases in electrical voltage within a circuit, which can potentially cause damage to electronic equipment.

Undercharging

The condition in which a battery or electronic device is not replenished with energy to its full capacity, often leading to decreased performance.

Stator Winding

The stationary coil in an electric motor or generator around which the rotor spins, creating a magnetic field that induces electricity.

Grounded Rectifier

A rectifier whose output or one of its terminals is connected to ground to provide a stable reference point for the circuit.