In the following diagram of action potential in a neuron, '2' depicts:
Correct answer: A. Depolarization
- A. Depolarization
- B. Repolarization
- C. Polarization
- D. Hyperpolarization
Explanation
The explanation is given below. SEE GRAPH, Point 2 depicts 'depolarization'. Depolarization is when a change occurs inside a cell that causes the distribution of electric charges to alter, leaving the cell with a less negative charge than the outside. point 2 is the depolarization phase.
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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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