Nerve impulses (action potentials) are electrical signals that travel along the axon of a neuron. These signals are generated by the movement of ions, primarily sodium (Na+) and potassium (K+), across the cell membrane. Voltage-gated ion channels specific for Na+ and K+ open and close in sequence, causing rapid changes in the membrane potential.
The transfer of electrical signals by nerve cells in human body is enabled by
Asked in UPSC NDA 2 2022 · Topic: Nervous System (Generation and Conduction of Nerve Impulse (Action Potential))
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