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对26例不同海拔高度意外死亡和无明显慢性心肺疾病尸者的颈动脉体(简称CB)进行了巨检、光镜及电镜观察,并探讨与高原低氧的关系。男23例、女3例。分组:①高原组6例,②中度高原组17例,③平原组3例。高原人CB平均体积、重量、小叶数量、小叶直径以及细胞直径均高于平原人,高原人CB细胞增生明显,核增大,双核。电镜下高原人CB的超微结构致密核心囊泡较平原人多,并多近胞膜分布,少数嗜锇核较小、空晕较宽、线粒体增大等。
26 cases of carotid body (referred to as CB) with accidental death and no obvious chronic heart disease at different altitudes were examined by light microscope and electron microscope, and the relationship with plateau hypoxia was explored. 23 males and 3 females. Grouping: ① plateau group 6 cases, ② moderate plateau group 17 cases, ③ plains group 3 cases. The mean CB volume, weight, number of leaflets, leaflet diameter and cell diameter of high altitude people were higher than that of plain people. Under electron microscope, the ultrastructure of high density human CB core vesicles more plain than the plain, and more near-cell membrane distribution, a small number of osmiophilic nuclei smaller, empty halo wide, mitochondria increased.