What is the basic functional unit of the human nervous system responsible for transmitting electrical and chemical impulses?
Answer and explanation
Correct answer: D. Neuron
- Step 1: The nervous system processes sensory information and coordinates motor responses.
- Step 2: The neuron (nerve cell) possesses a soma, dendrites, and an axon, firing action potentials to transmit information across synapses.
Answer
Neuron.
Why not the others: 'Nephron' is the functional filtering unit of the kidney; 'Alveolus' is the gas exchange unit of the lung; 'Sarcomere' is the contractile unit of skeletal muscle.
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