PART 1 大唾液腺 PART 2 胰腺 PART 3 肝脏 PART 4 胆囊与胆管

第21章人胚早期发育 1生殖细胞的发育成熟 1.1精子发生与卵子发生的比较

I. What’s histology? II. Why we study it ? III. How to study it ?-Histologicalmethods

《组织学与胚胎学 Histology and Embryology》课程PPT教学课件讲稿（英文版）Chapter 05 Blood and Hemopoiesis

1. Cartilage: organ=Cartilage tissue+perichondrium

---skin is the largest organ of the body, it constitutes about 16% of body weight ---its total surface area is about 1.2-2.2 m2 ---function: protection, sensory reception, excretion and thermoregulation

1. General description (1) components: ---cell: muscle fiber-myofiber elongated thread-liked Sarcolemma Sarcoplasm sarcoplasmic reticulum: SER

1. Components: ---small gland or endocrine cell: islet of pancreas and corpus luteum ---endocrine gland: Thyroid gland Parathyroid gland Adrenal gland Pituitary gland(hypophysis) Pineal body

---small gland: fundis gland, small intestinal gland ---large gland: salivary gland, pancreas, liver

1. Components ---kidney : produce urine ---ureters ---bladder -cavity organs, conduct, store and ---urethra remove the urine ---functions: remove waste products of metabolism regulate the homeostasis secrete some bioactive factors- renin, erythropoietin