滤泡旁细胞(parafollicular cell) >位置：位于甲状腺滤泡之间，或滤泡上皮细胞之间 >LM:较大。HE染色，色淡；银染，胞质内有嗜银颗粒。 >分泌：降钙素，降低血钙 滤泡旁细胞
滤泡旁细胞 滤泡旁细胞（parafollicular cell） ➢ 位置：位于甲状腺滤泡之间，或滤泡上皮细胞之间 ➢ LM：较大。HE染色，色淡；银染，胞质内有嗜银颗粒。 ➢ 分泌：降钙素 ,降低血钙
滤泡旁细胞(parafollicular cell) 甲状腺（镀银染色，示滤泡旁细胞）
甲状腺（镀银染色，示滤泡旁细胞） 滤泡旁细胞（parafollicular cell）
滤泡旁细胞(parafollicular cell)
滤泡旁细胞（parafollicular cell）
甲状腺的胚胎发育 早期发源于内胚层细胞 ↓ 第3周形成甲状腺憩室 ↓ 第68周下降至气管前方 ↓ 第12周出现原始滤泡 第5-6月形成小叶 Development of the thyroid gland.A to C,Schematic sagittal sections of the head and neck regions of embryos at 4,5,and 6 weeks illustrating successive stages in the development of the thyroid gland. D,Similar section of an adult head and neck showing the path taken by the thyroid gland during its embryonic descent (indicated by the former tract of the thyroglossal duct)
甲状腺的胚胎发育 早期发源于内胚层细胞 第3周形成甲状腺憩室 第6-8周下降至气管前方 第12周出现原始滤泡 第5-6月形成小叶 Development of the thyroid gland. A to C, Schematic sagittal sections of the head and neck regions of embryos at 4, 5, and 6 weeks illustrating successive stages in the development of the thyroid gland. D, Similar section of an adult head and neck showing the path taken by the thyroid gland during its embryonic descent (indicated by the former tract of the thyroglossal duct)
二、甲状旁腺(parathyroid glands) Thyroid gland Parathyroid glands Back view
二、甲状旁腺(parathyroid glands)