Most biological behaviors are controlled and transmitted by neural signals.
Neural signals are a type of electrical signal, conducting at high speed. When the signal transmits through nerves, it is manifested as voltage changes, but during transmission between cell bodies, it involves different media. The creation of different media is due to electric impulses opening voltage-gated channels, releasing certain chemicals at the ends, which bind with receptors on adjacent neurons, opening this neuron's ligand-gated channels, converting back into electric impulses.
Strictly speaking, all biological behaviors and changes are inseparable from neural signals. Even matters closely related to chemical reactions such as endocrine, thought, and memory are influenced and governed by faint electric currents of neural signals.
