Asked by GLAFIRA BAENA on May 31, 2024

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Which pair of hormones regulates the calcium levels of the blood?

A) Thyroxin and parathyroid hormone
B) Adrenocorticotropic hormone and thyroid stimulating hormone
C) Prolactin and oxytocin
D) Parathyroid hormone and calcitonin
E) Calcitonin and thyroxin

Parathyroid Hormone

Parathyroid hormone is a hormone produced by the parathyroid glands that regulates calcium levels in the blood.

Calcitonin

A hormone secreted by the thyroid gland that helps regulate calcium levels in the blood by inhibiting bone resorption.

Calcium Levels

The concentration of calcium ions (Ca2+) in a biological system, which is crucial for various physiological processes including bone formation, muscle contraction, and blood clotting.

  • Master the understanding of the roles and functions of different hormones in the human body.
  • Describe the regulation of calcium levels in the blood by hormones.
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ZK
Zybrea KnightJun 01, 2024
Final Answer :
D
Explanation :
Parathyroid hormone (PTH) increases blood calcium levels by stimulating the release of calcium from bones, increasing calcium absorption in the intestines, and reducing calcium excretion in the kidneys. Calcitonin, produced by the thyroid gland, lowers blood calcium levels by inhibiting bone resorption and increasing calcium excretion in the kidneys. Together, PTH and calcitonin maintain calcium homeostasis in the body.