Asked by christie xiong on May 18, 2024

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A change in the resting membrane potential has the following characteristics: non-propagated, graded, can summate. This type of change can

A) be a local potential.
B) be an action potential.
C) be a consequence of an increase in the permeability to Na+.
D) result in repolarization.
E) be a local potential and a consequence of an increase in the permeability to Na+.

Resting Membrane Potential

The electrical charge difference across the cell membrane when the cell is not actively transmitting signals, typically around -70mV for neurons.

Local Potential

Depolarization that is not propagated and that is graded or proportional to the strength of the stimulus.

Summate

To add together or accumulate to a total; in physiology, refers to the additive effect of repeated stimuli on a nerve or muscle.

  • Explain the mechanisms of action potentials and local potentials.
verifed

Verified Answer

AN
Amber NunezMay 24, 2024
Final Answer :
E
Explanation :
Local potentials are non-propagated, graded, and can summate. They can also result from changes in ion permeability, including an increase in sodium permeability.