The resting membrane potential is:
A) The same as the membrane equilibrium potential.
B) The voltage difference across a neuron's cell membrane,maintained by an unequal distribution of one specific ion.
C) Maintained by active transport of sodium ions (Na⁺) and potassium ions (K⁺) and passive diffusion of Na⁺,K⁺,and chloride ions (Cl-) through the cell membrane.
D) Typically measured at +70 millivolts (mV) because the intracellular environment is more positively charged than the extracellular environment.
E) Created by a more negative charge inside the membrane than outside because Na⁺ is continuously moved inside the cell membrane by an active transport pump.
Correct Answer:
Verified
Q4: Local potentials:
A)Are either receptor or synaptic potentials.
B)Spread
Q5: The strength of local electrical potentials is
Q6: Which of the following is the structural
Q7: Propagation of an action potential along an
Q8: Which one of the following neuron structures
Q10: Depolarization occurs when:
A)The membrane potential becomes less
Q11: Which one of the following is an
Q12: Guillain-Barré syndrome:
A)Involves demyelination of peripheral axons.
B)Results from
Q13: The nodes of Ranvier:
A)Are distributed approximately every
Q14: Glial cells contribute which of the following?
A)Communication
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