Which statement best describes the repolarization process?
A) The nerve membrane has reestablished a potential of +70 mV.
B) Positively charged sodium ions return to the axoplasm due to the negative charge of the axoplasm during polarization.
C) Positively charged sodium, calcium, and potassium ions are actively transported from the axoplasm to the extracellular environment.
D) Calcium ions re-bind to the receptor sites to ensure that Na+ will not continue to depolarize the axoplasm.
D
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Red blood cells typically last about ________
a. two weeks b. four weeks c. two months d. four months
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If a provider makes its payment plans stringent, the patients are likely to:
a. stop paying their payments. b. keep paying their payments. c. be scared of making payment plans. d. be reluctant to stay with the provider.
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