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DISCHARGE PATTERNS OF RESPIRATORY RELATED NEURONES IN THE MEDIAL AREAS OF NUCLEUS RETROFACIALIS OF MEDULLA
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- Author:
- No author available
- Journal Title:
- ACTA PHYSIOLOGICA SINICA
- Issue:
- 4
- DOI:
- 10.3321/j.issn:0371-0874.1997.04.005
- Key Word:
- 面神经后核内侧区;呼吸神经元;呼吸节律;家兔;大鼠
Abstract： 实验用家兔和SD大鼠,氨基甲酸乙酯麻醉(1 g/kg,iv or ip).记录膈神经或膈肌放电作为呼吸的指标.在延髓面神经后核内侧区(mNRF)细胞外记录呼吸相关神经元(RRNs)放电,在家兔所记录到的249个RRNs中,吸气神经元118个(47.4%,可分4种亚型),呼气神经元91个(36.5%,包括4种亚型),呼吸跨时相神经元40个(16.1%,包括E-I和I-E).在大鼠所记录到的153个RRNs中,吸气神经元68个(44.5%),呼气神经元55个(35.9%),呼吸跨时相神经元30个(19.6%),在mNRF分布有较多的呼气-吸气跨时相神经元(E-I PS),这类神经元放电总是先于膈神经吸气性放电,可能在基本呼吸节律发生中起重要作用.
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