Which process is responsible for decreasing serum calcium when calcium intake greatly exceeds renal excretion capacity?

💡 Explanation

Calcitonin secretion increases when serum calcium levels are high; because of this hormonal response, osteoblast activity increases and osteoclast activity decreases to deposit calcium into bone mineral. Therefore, calcitonin is the answer, rather than PTH or vitamin D, which elevate serum calcium.

• Why does enteric nervous system dysfunction often disrupt small intestine nutrient absorption following bariatric surgery?
• If an elderly patient undergoes prolonged bed rest following hip replacement surgery, which consequence most directly accelerates sarcopenia in the immobilized leg?
• Why does excessive soaking of skin cause increased permeability to irritants?
• Following placental abruption, which compensation mechanism increases maternal heart rate?
• Why does aspirin reduce fever, rather than increasing body temperature during systemic inflammation?
• Why does chronic cytokine release contribute to heart failure during sepsis?