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Respiratory related neurons in septum of the limbic system of tie rabbit

Liu Lei, Zhang Min, Gao Jianxin, Cao Li

Department of Physiology, Shandong Medical College. Shandong, China

Abstract

Experiments were performed in 42 urethane-anaesthetized (0.5 g/kg, iv) rabbits of both sexes. Discharge of 60 units correlated with respiration was recorded with glass microelectrodes in the septum. The units could be divided into 3 types: 30 related to inspiratory phase, 16 with expiratory phase, and 14 being phase-spanrang. The respiratory unit discharges in septum were shown to exist after bilateral vagotomy or injection of nekethamide. Some of them could be induced by asphyxia. The others emerged spontaneously respiratory discharges which disappeared immediately after minute injection of 2% sod. pentothal into the fourth ventricle. It is suggested that the respiratory information on to the septum of the limbic system might be considered to play a significant role in the coordination of autonomic functions and emotional activities.

Key words: Septum;Respiratory related neuron;Asphyxia

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Citing This Article：

Liu Lei, Zhang Min, Gao Jianxin, Cao Li. Respiratory related neurons in septum of the limbic system of tie rabbit. Acta Physiol Sin 1985; 37 (3): (in Chinese with English abstract).