Two hormones that work together to elevate calcium levels in the body are ________ and ________.
A) parathyroid hormone; calcitriol
B) vitamin A; vitamin C
C) parathyroid hormone; calcitonin
D) growth hormone; calcitonin
E) vitamin D₃; growth hormone

Question

Quizplus · Accepted Answer

Parathyroid hormone (PTH) and calcitriol (active form of vitamin D) work together to increase calcium levels in the body by stimulating osteoclasts to break down bone tissue and release calcium, increasing absorption of calcium from the gastrointestinal tract, and reducing calcium loss from the kidneys. Option C is incorrect as calcitonin actually lowers blood calcium levels by inhibiting bone resorption and increasing calcium excretion by the kidneys. Options B, D, and E are also incorrect as they do not have roles in calcium regulation.

Two Hormones That Work Together to Elevate Calcium Levels in the Body