The Rule That Neurons Are Either on or Off Is

question 104

Multiple Choice

The rule that neurons are either on or off is known as the _____ law.

• A)intensity of stimulus
• B)graded action
• C)all-or-none
• D)incremental transformational

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Definitions:

Sodium Ions

Positively charged ions of sodium, essential for the electrical signals in the nervous system and for regulating body fluids.

Norepinephrine

A neurotransmitter and hormone involved in the body's fight or flight response; it affects mood, attention, and other bodily processes.

Calcium Ions

Positively charged atoms of calcium that play essential roles in biological processes such as bone formation, muscle contraction, and blood clotting.

Cortisol

A hormone released by the adrenal glands when a person is under stress.