Asked by Tanner Marshall on May 21, 2024
Verified
In an action potential, depolarization occurs when
A) sodium ions move to the inside of the axon.
B) sodium ions move to the outside of the axon.
C) potassium ions move to the inside of the axon.
D) potassium ions move to the outside of the axon.
E) chlorine ions move to the outside of the axon.
Depolarization
The process of reducing the electrical charge difference across a cell membrane, crucial for the propagation of nerve impulses.
Sodium Ions
Positively charged particles of sodium, vital for maintaining the electrolyte balance and blood pressure in the body.
Axon
A long, slender projection of a nerve cell that typically conducts electrical impulses away from the neuron's cell body.
- Acquire knowledge on the steps involved in an action potential.
Verified Answer
JZ
Jianing ZhangMay 22, 2024
Final Answer :
A
Explanation :
Depolarization occurs when sodium ions move into the axon, causing the inside of the axon to become more positively charged. This triggers the opening of voltage-gated ion channels and the continuation of the action potential.
Learning Objectives
- Acquire knowledge on the steps involved in an action potential.