Answer:
The correct answer is E. The thyroid gland produces thyroxine and calcitonin.
Explanation:
Calcitonin is a linear peptide hormone composed of 32 amino acids that are involved in the regulation of calcium and phosphorus metabolism. It was discovered in the thyroid of the pig in 1963.
This hormone is produced in the parafollicular cells of the thyroid gland and its function consists in the reduction of blood calcium levels (Ca2 +), opposing the action of parathyroid hormone.
