Influx of which ion causes depolarization of the membrane, as the first phase of the action potential?
Correct answer: B. Na+
- A. K+
- B. Na+
- C. K+and Na+
- D. Ca+
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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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