11. Nervous Tissue and Nervous System

Ions - Sodium and Potassium

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What is the major extracellular cation in the human body?
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Which of the following structures allow the movement of potassium through the neuronal membrane?
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Which of the following statements about sodium and potassium ion channels is true?
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Which client is at risk for the development of a potassium level of 5.5 mEq/L (5.5 mmol/L)?
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Which of the following statements is true regarding how the concentration gradient affects sodium ions when a cell is at rest?
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In a neuron, a membrane potential of –90 mV is considered __________.
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Which of the following is true regarding the Na+/K+ pump?
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What do voltage-gated ion channels open in response to?
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Which of the following is a primary function of potassium in the human body?
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Which ions are necessary for both the intrinsic and extrinsic pathways of the coagulation cascade?
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Which of the following describes the function of the sodium-potassium pump in cellular physiology?
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Which of the following statements is false regarding the sodium-potassium pump?
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What is the most abundant extracellular cation?
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Which of the following statements about the sodium-potassium pump is correct?
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Which of the following substances blocks voltage-gated sodium channels?
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