组胚重点整理（Embryo arrangement）.docVIP

组胚重点整理（Embryo arrangement） 1, the four basic organizations of the human body? Epithelial tissue, connective tissue, muscle tissue, nerve tissue 2, the epithelial tissue structure features? A. cells are closely packed with very few extracellular matrix B. cells have polarity: free surface, basal surface and lateral surface C. has no vascular distribution but is rich in free nerve endings. 3, what are the main covering epithelium, which organs are mainly distributed? Covering the surface of the body and lining the cavity of the cavity Simple squamous epithelium (heart, blood vessel and lymphatic vessel, pleura, peritoneum and pericardium membrane, alveoli and renal vesicles) Simple cuboidal epithelium (tubules, thyroid follicles, etc) Simple columnar epithelium (stomach, intestine, uterus, gallbladder, etc) Ciliated ciliated columnar epithelium (the luminal surface of the respiratory duct) Stratified squamous epithelium (oral cavity, esophagus, etc; surface of skin) Transitional epithelium (cavity of renal pelvis, calyx, ureter, and bladder) 4, what are the cell connections? Tight junctions, intermediate junctions, desmosomes, gap junctions 5. What are the structures on the basal surface of epithelial cells? Specialized structures include basement membranes, half desmosomes, and plasma membrane folds 6. NOUN explanation: Endothelium: lining of the heart, blood vessels and lymph nodes of the single layer of flat epithelium, thin, smooth surface of the endothelium, is conducive to blood and lymph flow, but also conducive to material exchange. Mesothelial: a single layer of squamous epithelium distributed in the pleura, peritoneum, and pericardium, with a smooth, smooth surface to facilitate organ activity.. The microvilli of the free surface of the cell: the micro projecting digitationes, outsourcing of cell membrane, in the cytoplasm of striated border or brush border, longitudinal expansion of microfilament cell surface area, is conducive to the absorption function of