Thyroid gland: Anatomy, functions and hormones | Kenhub
https://www.kenhub.com/en/library/anatomy/thyroid-gland
WebJun 14, 2023 · Anatomy: Left lobe, right lobe, isthmus, pyramidal lobe (may be absent) Histology: Cells: thyrocytes (synthesize thyroglobulin from which T3 and T4 are released), parafollicular (C) cells (secrete calcitonine) Functional unit: thyroid follicle - central lumen filled with colloid (storage of thyroglobuline) surrounded by thyrocytes and C-cells
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