A word is one or more sounds that in combination have a specific meaning assigned by a language. The symbolic meaning of words can be so powerful that people are willing to risk their lives for them or take the lives of others.
A nerve impulse is the relaying of a coded signal from a nerve cell to an effector (a muscle cell, a gland cell or another nerve cell) in response to a stimulus. It is the means by which a nerve cell communicates with another cell.
Action Potential. Nerve Impulse- begins when a cell becomes stimulated with enough positive ions and fires. This travels down the axon jumping from one node of Ranvier to the next because of the increased insulation provided by the myelin sheath. At the terminal buttons, neurotransmitters will be released.