1. Tardigrade
  2. Question
  3. Biology
  4. Parathyroid hormone (PTH) increases the Ca2+ levels in the blood by a. Bone resorption/dissolution/demineralisation b. Reabsorption of Ca2+ by the renal tubules c. Increasing Ca2+ absorption from the digested food

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Parathyroid hormone (PTH) increases the $Ca^{2+}$ levels in the blood by
a. Bone resorption/dissolution/demineralisation
b. Reabsorption of $Ca^{2+}$ by the renal tubules
c. Increasing $Ca^{2+}$ absorption from the digested food

Chemical Coordination and Integration

Solution:

• Parathyroid hormone (PTH) increases the $Ca^{2+}$ levels in the blood. PTH acts on bones and stimulates the process of bone reabsorption (dissolution/demineralisation).
• PTH also stimulates reabsorption of $Ca^{2+}$ by the re nal tubules and increases $Ca^{2+}$ absorption from the digested food.
• It is, thus, clear that PTH is a hypercalcemic hormone, i.e., it increases the blood $Ca^{2+}$ levels.