The descending pathways of the bulbar vasoconstrictor centre have been repeatedly described in the literature. Lim et al. demonstrated that the excitatory fibres from the bulbar pressor area descended in the ipsilater...The descending pathways of the bulbar vasoconstrictor centre have been repeatedly described in the literature. Lim et al. demonstrated that the excitatory fibres from the bulbar pressor area descended in the ipsilateral ventrolateral column of the spinal cord without decussation and the inhibitory fibres from the depressor area partially decussated in the bulb. Later, Wang et al. reported that partial crossing of the excitatory fibres seemed to occur in the bulb also. Since most physiological studies of the pathways of vasoconstrictor centre in the past were carried out mainly with the response of blood pres-展开更多
文摘The descending pathways of the bulbar vasoconstrictor centre have been repeatedly described in the literature. Lim et al. demonstrated that the excitatory fibres from the bulbar pressor area descended in the ipsilateral ventrolateral column of the spinal cord without decussation and the inhibitory fibres from the depressor area partially decussated in the bulb. Later, Wang et al. reported that partial crossing of the excitatory fibres seemed to occur in the bulb also. Since most physiological studies of the pathways of vasoconstrictor centre in the past were carried out mainly with the response of blood pres-
