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Thyroid gland, SEM
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Thyroid gland, SEM
Thyroid gland. Coloured scanning electron micrograph (SEM) of a fracture through the thyroid gland revealing several follicles (yellow). Between the follicles is connective tissue (purple). A follicle consists of a layer of epithelial cells (grey) around a central storage chamber. The cells produce the thyroid hormones tri-iodothyronin (T3) and thyroxine (T4) and secrete them into the central chamber where they are stored as the glycoprotein thyroid colloid (yellow). Thyroid hormones regulate the bodys metabolism
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Media ID 6452973
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Chambers Colloid Connective Tissue Endocrine Gland Endocrinology Epithelial Epithelium Follicle Follicles Fracture Fractured Glycoprotein Hormone Hormones Metabolic Metabolism Secretory Thyroid Thyroid Gland Thyroxine False Coloured Section
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