What are nerve impulses?
Correct answer: D. Electrochemical Waves
- A. Electromechanical Waves
- B. Electromagnetic Waves
- C. Electromechno Waves
- D. Electrochemical Waves
Explanation
Nerve impulses are electrochemical because they involve both electrical and chemical changes. Electrical changes occur as ions like sodium and potassium move across the nerve cell membrane, creating an electrical signal called an action potential. Chemical changes happen at the synapse, where the electrical impulse triggers the release of neurotransmitters, which are chemical messengers that carry the signal to the next neuron or cell.
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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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