Pásaro R, Lobera B, González-Barón S, Delgado-García J M
Exp Neurol. 1983 Dec;82(3):623-34. doi: 10.1016/0014-4886(83)90085-7.
The central distribution of laryngeal motoneurons was studied in the cat by retrograde axonal transport of horseradish peroxidase. The enzyme was injected selectively into the cricothyroid (CT), lateral cricoarytenoid and thyroarytenoid (LCA-TA), and posterior cricoarytenoid (PCA) muscles of the larynx with or without the previous sectioning of the left laryngeal recurrent nerve (LR) or the left superior laryngeal nerve (SL). The CT motoneurons appeared as a compact group of medium-size cells located in the rostral one-third of the nucleus ambiguus (nA). The LCA-TA motoneurons were found in the caudal two-thirds of the nA, constituting a loose group of large motoneurons. The PCA motoneurons were located throughout the whole extend of the nA, the cells being large in the caudal pole and smaller in the rostral one-third of nA. Laryngeal muscle innervation was exclusively of ipsilateral origin. Axonal projections in the brain stem were different depending on the nerve (LR or SL) by which the efferent fibers were sent.
通过辣根过氧化物酶的逆行轴突运输，在猫身上研究了喉运动神经元的中枢分布。将该酶选择性地注射到喉的环甲肌（CT）、环杓侧肌和甲杓肌（LCA-TA）以及杓后肌（PCA）中，同时或不预先切断左侧喉返神经（LR）或左侧喉上神经（SL）。CT运动神经元表现为位于疑核（nA）头端三分之一处的紧密的中等大小细胞群。LCA-TA运动神经元位于nA尾端三分之二处，构成一个松散的大运动神经元群。PCA运动神经元分布于nA的整个范围，细胞在尾端较大，在nA头端三分之一处较小。喉肌的神经支配完全来自同侧。脑干中的轴突投射因传出纤维所通过的神经（LR或SL）不同而有所差异。
