Labels:text | screenshot | black and white | black | monochrome | document OCR: h the The thyroid gland develops as a pouch i mx midline of the ventral aspect of the phar pouches, between the first and second pharyngeal etal towards the end of the fourth week of fo lly becomesdevelopment (Fig. 15.2). The pouch rapi neck, the bilobular, connected by a narrow hollow omes a thyroglossal duct. The duct gradually bec pharyngeal solid stalk which then atrophies, but its caecum, The connection remains as a pit, the forame towards the back of the tongue in adults rd and parathyroid glands develop from the thi owards the fourth pharyngeal pouches, then move they are posterolateral aspect of the thyroid when situated in adul
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