高原及平原地区绵羊肺组织形态学的光镜观察

The Light-microscope Observation on Lung tissue of Sheep Living on Plateau and Plain area

对青藏高原（海拔高度３０００～４２００ｍ左右）藏羊及平原地区（海拔高度５０ｍ以下）小尾寒羊肺组织进行光镜下的比较组织学观察。结果表明：藏羊在单位面积中的肺泡数量、肺泡隔厚度、肺泡大小及肺泡隔中毛细血管的充盈程度等均与平原地区小尾寒羊有不同程度的差异。

The Compartive histological Observation of lung tissue under the light-micro-scope was conducted in6oth.Tibetan-sheep living Qinghai-tibetan plateau(about 3000～4200meteres above Sea leval)and Xiaoweihan-sheep living at the plain area with an elevation lessthan 50 metres. It was revealed that the Various differences existed in the number of alveoliper un it area,thickness of alveolar septum,sige of alveoli,and the capillary filling degreewithin alveolar Septum between the Tibetan-sheep and the Xiaoweihan-sheep