山东大学：《口腔组织病理学》课程教学资源（课件讲稿）第二章 牙的发育 Chapter 2 Development of Teeth 第一节 牙胚的发生和分化

少东子 1901 SHANDONG UNIVERSITY 第二章牙的发育 Chapter 2 Development of Teeth Designed and produced by Dr Wang Li

第二章 牙的发育 Chapter 2 Development of Teeth Designed and produced by Dr. Wang Li 1

概述 牙及其支持组织是从上下颌突和额鼻 突的外胚层及外胚间叶细胞发育而来。 ●牙齿发育是一长期、复杂的生物学过程。 ●牙齿发育是一个连续的过程,包括牙胚的 发生、牙体组织形成和牙齿的萌出 Designed and produced by Dr. Wang Li

概 述 牙及其支持组织是从上下颌突和额鼻 突的外胚层及外胚间叶细胞发育而来。  牙齿发育是一长期、复杂的生物学过程。  牙齿发育是一个连续的过程，包括牙胚的 发生、牙体组织形成和牙齿的萌出。 Designed and produced by Dr. Wang Li 2

少东子 1901 SHANDONG UNIVERSITY 第一节牙胚的发生和分化 Designed and produced by Dr Wang Li 3

第一节 牙胚的发生和分化 Designed and produced by Dr. Wang Li 3

牙胚的发生和分化 原发性上皮带: Primary epithelial band 胚胎第5周 m d a Designed and produced by Dr Wang Li

牙胚的发生和分化  原发性上皮带： Primary epithelial band Designed and produced by Dr. Wang Li 4 胚 胎 第 5 周

牙胚的发生和分化 原发性上皮带: Primary epithelial band 胚胎第5周 Designed and produced by Dr Wang Li

牙胚的发生和分化  原发性上皮带： Primary epithelial band Designed and produced by Dr. Wang Li 5 胚 胎 第 5 周

牙胚的发生和分化 原发性上皮带: Primary epithelial band Designed and produced by Dr. Wang Li

牙胚的发生和分化  原发性上皮带： Primary epithelial band Designed and produced by Dr. Wang Li 6

牙胚的发生和分化 原发性上皮带 Primary epithelial band 胚胎第周 前庭板 牙板 Vestibular lamina Dental lamina (唇颊侧) (舌腭侧) 前庭沟 牙胚 Ⅴ estibular groove Tooth germ Designed and produced by Dr. Wang Li

牙胚的发生和分化 Designed and produced by Dr. Wang Li 原发性上皮带 Primary epithelial band 前庭板 Vestibular lamina (唇颊侧) 牙 板 Dental lamina （舌腭侧） 前庭沟 Vestibular groove 牙 胚 Tooth germ 7 胚 胎 第 7 周

牙胚的发生和分化 Vestibular lamina dental lamina Vestibular lamina Dental Lamina Designed and produced by Dr Wang Li

牙胚的发生和分化 Designed and produced by Dr. Wang Li Vestibular lamina & Dental Lamina Dental Lamina Vestibular lamina 8

牙胚的发生和分化 Vestibular lamina dental lamina a d e Designed and produced by Dr. Wang Li

牙胚的发生和分化 Designed and produced by Dr. Wang Li Vestibular lamina & Dental Lamina 9

牙胚的发生和分化 Designed and produced by Dr. Wang Li

牙胚的发生和分化 Designed and produced by Dr. Wang Li 未来的上颌 发育中的舌 未来的下颌 10