The Depolarization of the Membrane Due to a Stimulus Is

question 72

Multiple Choice

The depolarization of the membrane due to a stimulus is a regenerative mechanism meaning that, once sodium gates begin to open, even more sodium gates will be activated leading to a larger inflow of sodium ions and more depolarization until it is terminated when sodium gates close. This is an example of

• A) inhibitory graded potentials.
• B) negative feedback.
• C) excitatory graded potentials.
• D) positive feedback.
• E) electrotonic conduction.

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