Animation Quiz 39.3 Hormonal Regulation of Calcium

Refer to the figure. Which terms should replace the capital letters in the figure to describe how calcium is regulated in the huma body?

A=High; B=Low; C=Calcitonin; D=Parathyroid hormone

Which three hormones are important in the regulation of blood calcium levels?

Calcitonin, parathyroid hormone, and vitamin D

Rickets is a disease that afflicts children. Symptoms include weak and deformed bones resulting from insufficient calcium deposition. Which dysfunction of calcium regulation could lead to rickets in a child?

Vitamin D deficiency

Which sequence of events will occur in an adult human going from a calcium-enriched diet to a calcium-deficient diet?

Calcitonin secretion will be inhibited, parathyroid hormone will be stimulated, and calcium release from bone will be stimulated.