When a neuron fires, current flows in and out through excitable regions in the axons and cell body of the neuron.

When the signal reaches a threshold, the neuron fires, sending a signal traveling along the axon to the olfactory bulb, part of the limbic system of the brain.

When a neuron fires, it generates a signal which travels to other neurons which, in turn, increase or decrease their potentials in accordance with this signal.

If enough neurotransmitter is registered, then this neuron fires.

When action potentials from multiple presynaptic neurons fire simultaneously, or if a single presynaptic neuron fires at a high enough frequency, the EPSPs can overlap and summate.

To explain the implications of this effect, Fields had me imagine a skill circuit in which two neurons need to combine their impulses to make a third, high-threshold neuron fire - for, say, a golf swing.

Bio-electrodes in my neurons translate its binary into thought: 1 makes the neuron fire and 0 does nothing.

If enough neurotransmitter is detected, this neuron fires, sending another electrical signal down the line.

When the neuron fires, the signal is sent to many other neurons, resulting in a divergence of output.

The Na1.7 channel amplifies these membrane depolarizations, and when the membrane potential difference reaches a specific threshold, the neuron fires.