一、概述: A.由含有收缩性蛋白质的肌细胞构成。 B.特殊概念:细胞→纤维(Fiber);sEr→肌浆网(Sarcoplasmic reticulum);细胞膜→肌膜(Sarcolemma);细胞质→肌浆(Sarcoplasm) C.分3类:骨骼肌,心肌和平滑肌

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

digestive and respiratory system derived from primitive gut /foregut /midgut /hindgut ---epi. of digestive and respiratory system derived from endoderm ---CT and MT of digestive and respiratory system derived from splanchnic or visceral mesoderm

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、泌尿系统的发生 1、肾、输尿管：来自间介中胚层 2、膀胱、尿道：来自尿生殖窦（内胚层）

(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)

一.一般构成: A.神经元(Neuron)传导电冲动。 B.神经胶质细胞(Neuroglia):有支持作用,并为神经元营造必要的工作环境

骨組織 組成〈細胞一骨細胞 細胞間質/大量力儿义厶塭沈着 (骨基質)膠原線維 無定形物質 骨骨組織 骨膜 力水员 関節軟骨

① Lymphocyte: a. T-lymphocytes: cytotoxic T cell: Tc C- kill the tumor cell, virus infective cell and foreign cell helper T cell: Th C- promotes activity of BLC and Tc C suppressor T cell: Ts C –regulate the function of BLC and TC

1.General feature: (1) contain more cells and less extracellular ground substance (2) Polarisaton: ---free outer surface: face air or other things ---basal surface: face underlying CT, havebasement membrane (3) Avascularity,but innervation: ---no blood vessels ---rich in nerve terminals