Asked by
Gurwinder Singh
on Dec 20, 2024Verified
A change in the resting potential from -70 mV to -65 mV is called:
A) depolarization.
B) hyperpolarization.
C) graded excitatory potential.
D) nothing, as these changes occur spontaneously.
Depolarization
The process in which a cell's membrane potential becomes less negative, moving towards zero, typically initiating nerve impulses or muscle contractions.
Resting Potential
Electrical charge across the insulating cell membrane in the absence of stimulation; a store of potential energy produced by a greater negative charge on the intracellular side relative to the extracellular side.
Hyperpolarization
An increase in a cell's membrane potential, making it more negative and decreasing the likelihood of generating an action potential.
- Master the concepts of membrane potential and ion distribution in relation to neuron performance.
Verified Answer
RA
Learning Objectives
- Master the concepts of membrane potential and ion distribution in relation to neuron performance.