sketch and label histology of thyroid gland
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Histologically, the thyroid gland is organized as epithelial cells surrounding colloid-containing pools, called follicles. The colloid is rich in thyroglobulin, a protein possessing many tyrosine residues to which iodine molecules attach to form the thyroid hormones.
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The thyroid gland is an endocrine gland that secretes essential hormones for the normal functions of the body.
- Histology is the study of tissues focussing on the structure of each cell.
- Histology of the thyroid gland reveals cells like colloidal, follicular, blood capillary, thyroid follicle, parafollicular cells.
- Colloidal cells act as a precursor to initiate the synthesis of T3 and T4 hormones.
- The hormones that are released are stored and therefore are called the colloid.
- These hormones maintain the metabolism of the body.
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