1. Components ---ovary: produce ovum secrete female sex hormones ---oviduct: duct for fertilized ovum(zygote) passing through place where fertilization takes place ---uterus: organ where the fetus grow up ---vagina

---a science which study the processes and regulations of development of human fetus.(from 1 cell(zygote) to (5-7)X1012 cells ) ---total 38 weeks: preembryonic period: before 2 weeks

(1) extra-embryonic blood vessels ---blood island: at the middle of 3 rd week, wall of the yolk sac mesenchyma proliferate and form isolated cell clusters, the peripheral cell become flattened and differentiate into endothelial cell to from endothelial tube; central located cells are detached and develop into primitive blood cells(blood stem cell)

一、如何吸引学生 二、如何启发学生 三、如何与学生交流 四、如何组织学生 五、形成教学艺术风格

１．畸形学的概念 ２．畸形的成因 ３．畸形的分类 ４．致畸敏感期 ５．畸形的预防和治疗

一、原始消化管的形成和分段 第4周，胚盘卷褶，卵黄囊入胚体内，形成原始消化管

一、原始心血管系统的建立 二、心脏的发生

General outline Blood vascular system Heart Arteries Capillaries veins Lymphatic vascular system Lymphatic capillaries Lymphatic vessel Lymphatic ducts

一、肾 1、肾小体 （renal corpuscle） ⑴血管球 （glomerulus） ⑵肾小囊 （renal capsule）

消化腺（Digestive gland） 组成 ： 小消化腺 食管腺 胃腺 肠腺 大消化腺 大唾液腺：腮腺、颌下腺、舌下腺 胰腺 肝 一般结构： 被膜， 叶和小叶，分泌部，导管 功能 ： 化学消化