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# Nerve Impulse Transmission The image depicts the components involved in transmitting a nerve impulse along a neuron. ## Components The diagram illustrates three key components: * **(a) Voltage:** Represents the difference in electrical charge across the plasma membrane. The formula shown: C...

# Nerve Impulse Transmission The image depicts the components involved in transmitting a nerve impulse along a neuron. ## Components The diagram illustrates three key components: * **(a) Voltage:** Represents the difference in electrical charge across the plasma membrane. The formula shown: Current = Voltage / Resistance, highlights the relationship between current, voltage, and resistance in the transmission process. * **(b) Resistance:** This refers to the opposition to the movement of charged particles (ions) across the plasma membrane. The plasma membrane itself contributes to this resistance. * **(c) Current:** Represents the movement of charged particles (ions) across the plasma membrane through open channels. Specific examples of channel types (Na⁺ and K⁺ channels) are shown, indicating the role of these channels in ion movement and consequently, the nerve impulse. The diagram also shows: * **Plasma membrane:** Boundary separating the inside and outside of the neuron. * **Channels (Na⁺ and K⁺):** Protein channels embedded in the membrane that allow specific ions to pass through. The diagram highlights the role of these channels in allowing charged particles to cross the membrane.