A medullary carcinoma of the thyroid gland was examined by electron microscopy, histochemistry and bioassay for thyrocalcitonin. Numerous secretory granules were present in the cytoplasm of the ...
Calcitonin, which is also known as thyrocalcitonin, is a protein hormone that, in humans and other mammals, is mainly secreted by the parafollicular cells (C cells) of the thyroid gland. Image Credit: ...
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