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Questions and Answers
Calcitonin is a peptide hormone secreted by the parafollicular cells in the thyroid gland.
Calcitonin is a peptide hormone secreted by the parafollicular cells in the thyroid gland.
True (A)
The primary function of calcitonin is to increase plasma calcium concentration.
The primary function of calcitonin is to increase plasma calcium concentration.
False (B)
Calcitonin plays a more significant role in regulating calcium ion concentration compared to PTH in humans.
Calcitonin plays a more significant role in regulating calcium ion concentration compared to PTH in humans.
False (B)
The synthesis and secretion of calcitonin primarily occur in the follicles of the thyroid gland.
The synthesis and secretion of calcitonin primarily occur in the follicles of the thyroid gland.
Calcitonin is a 30-amino acid peptide with a molecular weight of about 3400.
Calcitonin is a 30-amino acid peptide with a molecular weight of about 3400.
Calcitonin tends to increase plasma calcium concentration in humans.
Calcitonin tends to increase plasma calcium concentration in humans.
The quantitative role of calcitonin in regulating calcium ion concentration is greater than that of PTH in humans.
The quantitative role of calcitonin in regulating calcium ion concentration is greater than that of PTH in humans.
The parafollicular cells that synthesize and secrete calcitonin constitute about 1% of the human thyroid gland.
The parafollicular cells that synthesize and secrete calcitonin constitute about 1% of the human thyroid gland.
Calcitonin is a 32-amino acid peptide with a molecular weight of about 3400.
Calcitonin is a 32-amino acid peptide with a molecular weight of about 3400.
Calcitonin is exclusively synthesized and secreted by the follicles of the thyroid gland.
Calcitonin is exclusively synthesized and secreted by the follicles of the thyroid gland.
