Exam 8: Water and Minerals

A major mineral is one that

Thyroid-stimulating hormone decreases with iodine deficiency.

All of the following are true about thirst EXCEPT that

The majority of water in the body is intracellular, or located inside the cell.

As illustrated in this picture, you feel a pinprick because it stimulates nerves under the skin. Describe the roles that sodium and potassium play in nerve impulse transmission. In your response, make sure to address the following: How are electrolyte concentrations of sodium and potassium disrupted? How does the nerve impulse travel through the nerve to signal the brain? How are electrolyte concentrations restored?

When fluoride intake is low, tooth decay is more frequent.

Identify the strongest argument against bottled water and justify its validity.

All calcium in the body is found in the bone.

Urine color charts help people monitor their ________ status.

A healthy blood pressure is _____ mm of mercury.

Heme iron is more bioavailable than non-heme iron.

Which of the following minerals have a role in blood pressure regulation?

An iodine deficiency causes the thyroid gland to enlarge. Explain why this occurs. Include the following terms in your answer: thyroid hormone, thyroid-stimulating hormone, and goiter.

The main source of calcium in the North American diet is from calcium supplements.

A deficiency of a trace mineral is just as damaging to your health as a deficiency of a major mineral.

Which of the following is not a function of magnesium?

The Environmental Protection Agency sets standards for municipal water systems making tap water similarly safe as bottled water.

About 25% of the bottled water sold in the United States is the same water that comes from local municipal water supplies or "tap" water.

Which of the following is not a trace mineral?

A low vitamin D intake is the most significant dietary factor contributing to osteoporosis.