Furusawa K, Yamaoka M, Kogo M, Matsuya T
Oral and Maxillofacial Surgery Department II, Matsumoto Dental College, Nagano, Japan.
Brain Res Bull. 1991 Apr;26(4):599-604. doi: 10.1016/0361-9230(91)90101-o.
We developed a novel method which enables bloodless exposure of the levator veli palatini muscle in rat in order to investigate the physiological properties of this muscle. The levator veli palatini muscle which is innervated by a branch of the glossopharyngeal nerve showed rhythmic spontaneous movement in rats. Cutting the branch supplying LVP of the glossopharyngeal nerve caused cessation of the spontaneous movement of the levator veli palatini muscle. The spontaneous discharges of the glossopharyngeal nerve were synchronized with those of the phrenic nerve. A mixture of 95% oxygen and 5% room air influenced the efferent discharges from the branch of the glossopharyngeal nerve supplying the levator veli palatini muscle. These findings indicate that the motor nerve supply to the levator veli palatini muscle is the glossopharyngeal nerve, and the levator veli palatini muscle is related to the respiratory system, in particular with inspiration in rats.
我们开发了一种新方法，可在大鼠体内实现腭帆提肌的无血暴露，以研究该肌肉的生理特性。由舌咽神经分支支配的腭帆提肌在大鼠中表现出有节奏的自发运动。切断舌咽神经供应腭帆提肌的分支会导致腭帆提肌自发运动停止。舌咽神经的自发放电与膈神经的自发放电同步。95%氧气和5%室内空气的混合气体影响舌咽神经供应腭帆提肌分支的传出放电。这些发现表明，腭帆提肌的运动神经供应是舌咽神经，并且腭帆提肌与呼吸系统有关，特别是与大鼠的吸气有关。
