兔面神经核背内侧区呼吸神经元的放电模式  

DISCHARGE PATTERNS OF RESPIRATORY NEURONES IN DORSAL MEDIAL AREA OF NUCLEUS FACIALIS IN RABBITS

作　　者：王丽[1] 徐欣[2] 刘磊[1] 

机构地区：[1]山东医科大学生理学教研室 [2]卫生部耳鼻喉科学重点实验室

出　　处：《山东医科大学学报》1999年第4期278-279,282,共2页Acta Academiae Medicinae Shandong

基　　金：国家自然科学基金!资助课题(3880345)

摘　　要：实验用健康成年家兔３０ 只，氨基甲酸乙酯麻醉。在面神经核背内侧区（ｄＭＮＦ）细胞外记录呼吸神经元（ＲＮｓ）放电，以记录膈神经放电作为呼吸的指标。在ｄＭＮＦ内记录到１９６ 个ＲＮｓ，其中吸气神经元 ８９ 个（４５．４％ ，包括３ 种亚型），呼气神经元４３ 个（２２％ ，包括３ 种亚型），呼吸跨时相神经元６４ 个（３２．６％ ，包括２ 种亚型）。其中吸气递增神经元和呼－吸跨时相神经元占总数５４．５％ 。The experiment was performed on 30 rabbits, anesthetized with urethane. Discharges of phrenic nerve were monitored. Discharge patterns of the respiratory neurons (RNs) in the dorsal medial area of nucleus facialis (dMNF) were recorded and analyzed. Among the 196 RNs recorded in the dMNF, 89 were inspiratory neurons (I,45.4%), 43 expiratory neurons (E,22%) and 64 phase spanning(PS 32.6%). Both I and E neurons could be further subdivided into 4 subtypes, the PS neurons into E I and I E type. The E I neurons and I aug neurons were 54.5% of the recorded neurons in the dMNF, which were believed to be important in the mechanism of the generation of the central respiratory rhythm.

关 键 词：面神经核背 内侧区 呼吸神经元 放电模式 

分 类 号：R338[医药卫生—人体生理学]