中华花龟五种器官组织学观察

利用石蜡切片法对中华花龟的心脏、肝脏、脾脏、肺和肾脏等组织器官进行了组织学观察.结果显示心肌的特点是暗带较窄,心肌纤维束状排列.肝脏分3叶,肝实质内结缔组织少,肝小叶分界不清楚.脾脏分被膜和实质两部分,实质由白髓和红髓构成,白髓包括椭球周围淋巴鞘(PELS)和动脉周围淋巴鞘(PALS),红髓由脾索和脾窦组成,未发现淋巴小结和生发中心.肺一对,为长形扁平囊,肺泡囊状,肺泡内可见管壁的结节状膨大.肾脏由肾小体、颈段、近曲小管、中间段、远曲小管和收集管6部分构成,肾小体由肾小球和肾小囊组成,在肾小体附近可见致密斑样结构.

Histologies study of five organs of Ocadiasinensis

The histologies of heart, liver, spleen, lung and kidney of Ocadiasinensiswere were studied by paraffin section and microphotograph technique. The results showed that the characteristic of cardiac muscle is cabined diazone and cardiac muscle fibers are bunchy arrangements. The liver is separated into three leaves. The connective tissue is little and the borderline of hepatic lobule is mistiness in liver. The spleen is separated into capsule and parenchyma. The splenic parenchyma is composed of white and red pulps. The white pulp is composed of the periaterial lymphatic sheath (PAIS) and the periellipsoidal lymphatic sheath (PELS). The red pulp is composed of the splenic cord and spenic sinus. No lymph nodule and germinal center are found in spleen. The lung is a pair of long flat sac and the pulmonary alveoli are capsular. There are nodus-like enlargements in pulmonary alveolustubules. The kidney is composed of renal corpuscle, neck segment,proximal tubule, middle segment,distal tubule and collecting tubule. The renal corpuscle is composed of glomerulus and renal capsule. There are similar structures of maculae densa about renal corpuscle.