HEAD NECK
THYROID GLAND
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stem cells and bone cells
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Blood cells and fat cells
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Follicular cells and parafollicular cells
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Nerve cells and endothelial cells
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Detailed explanation-1: -The thyroid tissue has 2 types of cells: follicular cells and parafollicular cells. Most of the thyroid tissue consists of follicles lined by the follicular cells. These secrete the iodine-containing thyroid hormones.
Detailed explanation-2: -Calcitonin. Parafollicular cells (C cells) scattered throughout the thyroid gland synthesize, store, and secrete calcitonin (thyrocalcitonin). These cells are derived from neural crest cells that fuse with the thyroid gland.
Detailed explanation-3: -The key difference between parafollicular and follicular cells is the type of secretion each type of cell makes. Parafollicular cells secrete calcitonin, whereas follicular cells secrete thyroxin and triiodothyronine. The thyroid gland is a main endocrine gland.
Detailed explanation-4: -Follicular cells use iodine from the blood to make thyroid hormones, which help regulate a person’s metabolism. C cells (also called parafollicular cells) make calcitonin, a hormone that helps control how the body uses calcium. 14-Mar-2019