TOPICS: Thyroid gland, pituitary gland, foramen cecum, thyroglossal duct, pyramidal lobe, thyroid diverticulum, thyroid lobes, isthmus, trachea, pharyngeal floor, follicular cells, ultimobranchial body and parafollicular (C) cells of the thyroid, palatine tonsil, inferior parathyroids, superior parathyroids, thymus, ultimobranchial boc, descent of thyroid during development, thyroid gland embryology, pharyngeal apparatus, endoderm, thyroglossal duct remnants, foramen cecum, pyramidal lobe, thyroglossal duct cyst, ectopic thyroid tissue, hypothyroidism, neural plate, notochord, ectoderm, neural fold, neural groove, neural tube, neural crest cells, neuroectoderm, pituitary gland embryology, neurulation, diencephalon, hypothalamus, Rathke’s pouch, craniopharyngioma, surface ectoderm, antidiuretic hormone (ADH), oxytocin, anterior pituitary, posterior pituitary, respiratory diverticulum, telencephalon, mesencephalon, metencephalon, myelencephalon, gut tube, sella turcica