Inhibitory effects on the myoelectric activities of genioglossus during stimulating ventral medial area of nucleus facialis in rabbits
- VernacularTitle:刺激家兔面神经核腹内侧区对颏舌肌肌电活动的抑制效应
- Author:
Li WANG
;
Xin XU
;
Lei LIU
- Publication Type:Journal Article
- From:
Basic & Clinical Medicine
2001;21(1):81-84
- CountryChina
- Language:Chinese
-
Abstract:
The effects of electrical and chemical stimulation of the vertral medial area of nucleus facialis (vMNF) on the myoelectric activities of genioglossus were observed in 26 urethane-anaesthetized and vagotomized rabbits. The results are as follows: (1) Long train electrical stimulation at the vMNF inhibitited the myoelectric activities of genioglossus markedly. (2) Microinjection of glutamate into the vMNF caused inhibitory response of the myoelectric activities of genioglossus. (3) When single pulse electrical stimulation on vMNF, measurement latency of genioglossus myoelectric activities was (20.6±0.4)ms. These results suggested that the excitation of vMNF could decrease the myoelectric activities of genioglossus so that the resistance of upper airway might be enhanced.
