Moderate

The typical neuronal resting membrane potential measures between:

Correct answer: C. - 40 mv to -90 mv

  • A. -40 mv to -80 mv
  • B. - 30 mv to -80 mv
  • C. - 40 mv to -90 mv
  • D. - 40 mv to -70 mv

Explanation

The neuron cell membrane is super permeable to potassium ions, and so lots of potassium leaks out of the neuron through potassium leakage channels (holes in the cell wall)making inside more negative.

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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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