Watson C R, Sakai S, Armstrong W
Brain Behav Evol. 1982;20(1-2):19-28. doi: 10.1159/000121578.
The topographic organization of the facial nucleus motoneurons in the rat was investigated with the horseradish peroxidase retrograde tracing method using tetramethyl benzidine as a chromogen. Facial muscles were 'represented' on the facial nucleus in an orderly fashion. For example, the motoneurons supplying the rostral (nasolabial) muscles are laterally placed, whereas those supplying the caudal (auricular) muscles are medially placed. Notable findings in this study are: (i) the relatively unremarkable size of the nasolabial (vibrissal) muscle representation; there does not seem to be an increase in size of this part of the nucleus, commensurate with the specialized sensory functions of the vibrissal area of the face and (ii) the neurons supplying the posterior belly of the digastric are found in the suprafacial nucleus which lies about 1 mm dorsal to the main facial nucleus.
采用四甲基联苯胺作为显色剂的辣根过氧化物酶逆行追踪法，对大鼠面神经核运动神经元的拓扑组织进行了研究。面部肌肉在面神经核上呈有序的“代表”分布。例如，支配吻侧（鼻唇）肌肉的运动神经元位于外侧，而支配尾侧（耳）肌肉的运动神经元位于内侧。本研究的显著发现有：（i）鼻唇（触须）肌代表区相对不显著；与面部触须区的特殊感觉功能相称，该核的这一部分似乎没有增大；（ii）供应二腹肌后腹的神经元位于面神经主核背侧约1mm处的面神经上核。
