Rokx J T, Jüch P J, Van Willigen J D
J Anat. 1985 Mar;140 ( Pt 2)(Pt 2):237-43.
Using horseradish peroxidase and fluorescent compounds as retrograde tracers, the myotopical arrangement and axon trajectories of the motoneurons innervating the supramandibular and the suprahyoidal muscles were studied in the rat. Only motoneurons ipsilateral to the injection site were labelled. In the trigeminal motor nucleus, motoneurons of the superficial masseter muscle were found laterally, of the anterior deep masseter muscle centrally, and of the temporalis muscle dorsally and medially. Motoneurons of the anterior and posterior digastric muscle were located in the accessory motor nucleus of the trigeminal and facial nerve respectively. Evidence is provided that jaw-opening muscles are innervated from a separate motor complex.
利用辣根过氧化物酶和荧光化合物作为逆行示踪剂,在大鼠中研究了支配下颌上和舌骨上肌肉的运动神经元的肌局部排列和轴突轨迹。仅注射部位同侧的运动神经元被标记。在三叉神经运动核中,咬肌浅层的运动神经元位于外侧,咬肌前深层的运动神经元位于中央,颞肌的运动神经元位于背侧和内侧。二腹肌前腹和后腹的运动神经元分别位于三叉神经和面神经的副运动核中。有证据表明,张口肌由一个独立的运动复合体支配。