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Q: What happens in the depolarization of a nerve?
(A). Sodium ions exit the nerve membrane(B). Sodium ions enter the nerve membrane(C). Both sodium ions and potassium ions enter the nerve membrane(D). Both sodium ions and potassium ions exit the nerve membraneKeyword: depolarizationNerve conduction (and recovery) follows the steps of...  Read More
Q: The cervical area has ____ vertebrae.
(A). 5(B). 7(C). 9(D). 12Keyword: cervical There are 7 cervical vertebrae. There are 12 thoracic vertebrae. There are 5 lumbar vertebrae. There are 4-5 modular pieces in the coccygeal that are fused. In adults, this segment may be fused with the sacrum.Answer: (B). 7When someone gets an...  Read More

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