STANDARDZoology-Endocrine System
STANDARD Zoology Thyroid Gland MCQ Question
Type: MCQ-conceptual-Medium
Calcitonin lowers the calcium level in the blood. This is secreted by
A
Parathyroid
B
Hypothalamus
C
Adrenal
D
Thyroid
Correct Answer
Option D
Detailed Explanation
Calcitonin is a long peptide hormone secreted by parafollicular cells of thyroid gland. Its secretion is regulated by increased plasma level of Ca²⁺.
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