Rokx J T, Van Willigen J D
Orofacial Research Group, School of Dentistry, University of Groningen, The Netherlands.
Acta Anat (Basel). 1988;132(3):242-5. doi: 10.1159/000146580.
Retrograde transport of fluorescent tracers (diamidino yellow and true blue) was used to study the arrangement of brainstem neurons innervating the lateral pterygoid muscle in the rat. The lateral pterygoid motoneurons were located in the dorsolateral (jaw-closing) part of the trigeminal motor nucleus with clear somatotopy in the caudal part of the nucleus. No muscle-related neurons were present in the mesencephalic trigeminal nucleus. Histological examination of serial sections of lateral pterygoid muscles confirms the notion that, at least in the rat, this muscle is devoid of muscle spindles.
利用荧光示踪剂（双脒基黄和真蓝）的逆行运输来研究支配大鼠翼外肌的脑干神经元的排列。翼外肌运动神经元位于三叉神经运动核的背外侧（闭口）部分，在核的尾部有明显的躯体定位。中脑三叉神经核中不存在与肌肉相关的神经元。翼外肌连续切片的组织学检查证实了这样一种观点，即至少在大鼠中，该肌肉没有肌梭。
