Action potential in the neuronal membrane starts the process of?
Correct answer: B. Depolarization
- A. Polarization
- B. Depolarization
- C. Repolarization
- D. Hyperpolarization
Explanation
When an action potential begins, sodium ions rush in, making the inside of the neuron less negative, which is called depolarization. The influx of positive ions opens ion channels, causing the inside of the cell to become more positive and initiating a cellular response.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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