The figure below shows different stages of action potential: What is represented by C?
Correct answer: C. Repolarization
- A. Depolarization
- B. Resting membrane potential
- C. Repolarization
- D. Hyperpolarization
Explanation
This phase of an action potential involves the return of the membrane potential to its resting state after depolarization. It is often characterized by the efflux of positively charged ions, typically potassium (K+), out of the neuron. And that phase in the figure is C.
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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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