Hyponatremia Is a Condition Characterized by Low Sodium in the Blood.This

question 20

Multiple Choice

Hyponatremia is a condition characterized by low sodium in the blood.This is a concern for marathon runners who drink too much water,and can cause life-threatening pressure on the brain.Why would this occur?

• A) Neurons would take up the sodium from the blood and not be able to polarize.
• B) Neurons would be stimulated to all fire at once.
• C) Neurons would swell by osmosis.
• D) Neurons die in low levels of sodium.
• E) Neurons cannot give the kidneys signals to reabsorb sodium ions.

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