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A sedentary patient is low in vitamin D, and her calcium levels begin to drop. How will the body respond to bring calcium levels back to normal?Multiple ChoiceIncrease parathyroid hormone secretionIncrease urinary excretion of calciumIncrease calcitonin secretionActivation of osteoblasts

Question

A sedentary patient is low in vitamin D, and her calcium levels begin to drop. How will the body respond to bring calcium levels back to normal?Multiple ChoiceIncrease parathyroid hormone secretionIncrease urinary excretion of calciumIncrease calcitonin secretionActivation of osteoblasts

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Solution

The body will respond by increasing parathyroid hormone secretion.

Here's the step by step explanation:

  1. When calcium levels in the blood drop, the parathyroid glands sense this decrease.
  2. In response, the parathyroid glands secrete more parathyroid hormone (PTH).
  3. PTH acts on several areas of the body to increase calcium levels.
  4. In the bones, PTH activates osteoclasts, which break down bone and release calcium into the bloodstream.
  5. In the kidneys, PTH reduces the amount of calcium excreted in the urine and activates vitamin D, which increases calcium absorption in the gut.

So, the correct answer is "Increase parathyroid hormone secretion".

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Similar Questions

Effector: Synergistically, PTH and calcitriol (vitamin D) increase low blood calcium levels. Osteoclast activity is stimulated by PTH, which promotes bone release and resorption of calcium into the blood (Khan et al., 2022). Furthermore, PTH stimulates the kidneys to convert vitamin D from inactive to active form, calcitriol. This will encourage calcium absorption in the small intestine, increasing blood calcium levels. Together, these mechanisms elevate calcium levels in the blood and restore calcium homeostasis. Increased calcium levels in the serum act as a negative feedback loop, signalling the parathyroid glands to stop the release of PTH is this statement correct?

Select all direct effects of parathyroid hormone in the body.Multiple select question.Promotes calcium reabsorption by the kidneysPromotes activity of osteoclastsEnhances general cellular metabolic ratesActivates vitamin D in the kidneysDecreases blood calcium levels

What hormone causes the blood calcium level to increase by activating vitamin D in the kidneys to aid in the reabsorption of calcium? A. Parathyroid B. Calcitonin C. Mineralcorticoids D. Glucocorticoids

Hypersecretion of parathyroid hormone may result in _________blank.Multiple Choiceelevated blood calcium levelsbones that lack flexibilityan increase in calcium excreted in the urinea decrease in calcitriol levels

Multiple Choice QuestionWhat can happen if blood calcium levels drop too low?Multiple choice question.ConvulsionsBlood clottingMuscle paralysisCalcium is stored in bones

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