Which of the following will restore original ion gradients and resting membrane potential (RMP) after hyperpolarization in neurons?
Correct answer: B. Na+/K+ pumps
- A. K+ channels
- B. Na+/K+ pumps
- C. Na+ channels
- D. Ca2+ channels
Explanation
In myelinated neurons, action potentials jump from one node of Ranvier to the next. Myelin acts as insulation, speeding up conduction by preventing continuous depolarization along the axon.
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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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If stimulation is above _, impulses travel to the brain along the sensory neuron.
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