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8 years, 7 months ago
Please have a look at this close up light microscopic image of a thyroid gland:
So I'm guessing the cubic epithelial cells surrounding this big red pulp are the secreting cells...? If so, is the red pulp a blood vessel that they are secreting into?
Am I misunderstanding?
Oct 8, 2014 at 17:11
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That "red pulp" spaces you're referring are not blood vessels but, in fact, thyroid follicles that selectively absorb iodine from the blood for production of thyroid hormones and storage of thyroglobuline. So, they act as a reservoir of the materials used by the thyroid's epithelial cells, also called follicular cells, to produce thyroid hormones (T3 and T4).
Oct 13, 2014 at 11:38
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