实验五 空肠绒毛

实验五 空肠绒毛 报告主题：空肠绒毛

主题属性：定选

标本号：19#

材料：猫空肠

染色：HE 染色

教学要求：

掌握空肠绒毛的结构

图五 猫空肠绒毛（猫空肠，HE 染色，40×10）

Fig five cat jejunum villus (cat jejunum, stained with HE, 40 × 10) 上皮和固有层共同向肠腔突出形成小肠绒毛，绒毛的表面为单层柱状上皮细胞，主要有柱状细胞和少量的杯状细胞，上皮游离面有染色较红色的纹状缘，绒毛的中轴的固有层为细密结缔组织，其内常可见散在纵行的平滑肌，丰富毛细血管，1~2条中央乳糜管及大量的淋巴细胞The epithelium and lamina propria is common to the intestinal cavity with prominent formation of intestinal villi, villous surface of columnar epithelial cells, mainly with columnar cells and a small number of goblet 纹状缘Striated border

杯状细胞Goblet cell 柱状细胞Columnar cell

平滑肌细胞Smooth muscle cells

淋巴细胞Lymphocyte

cells, epithelial free surface stained more red striated border, villus axis of the lamina propria is a dense connective tissue, which often can be seen scattered in longitudinal smooth, rich in capillaries, 1~2 central lacteal and large numbers of lymphocytes