Lucier G E, Egizii R, Dostrovsky J O
Brain Res Bull. 1986 May;16(5):713-21. doi: 10.1016/0361-9230(86)90143-7.
The internal branch of the superior laryngeal nerve (iSLN) conveys sensory afferent information from receptors located in the laryngeal mucosa. The objectives of this study were: to determine the specific anatomical location of iSLN cell bodies within the nodose ganglion; to ascertain whether the jugular ganglion might also contain iSLN afferent bodies; to determine whether the iSLN contains sympathetic efferents originating in the cervical sympathetic ganglion; to determine whether the cell bodies of these efferents, if present, are localized within a specific region of this ganglion and to trace the transganglionic projection of iSLN afferents into the brain stem. Horseradish peroxidase was applied to the iSLN in ten adult cats. Following a survival period of 72 hours, the animals were sacrificed and the tissue was processed according to the tetramethylbenzidine method. Reaction product was localized in the rostral end of the nodose ganglion extending into the exiting vagus nerve, in the caudal end of the jugular ganglion and in the posterior portion of the cervical sympathetic ganglion. Transganglionic projections to the nucleus tractus solitarius were localized primarily in the dorsolateral subnucleus with substantial amounts of reaction product also in the intermediate and interstitial subnuclei. Except for a small bilateral projection observed in the commissural subnucleus, no other projections were seen to any other brain stem structures.
喉上神经内支（iSLN）传递来自位于喉黏膜的感受器的感觉传入信息。本研究的目的是：确定iSLN细胞体在结状神经节内的具体解剖位置；确定颈静脉神经节是否也含有iSLN传入神经细胞体；确定iSLN是否含有起源于颈交感神经节的交感传出神经；确定这些传出神经的细胞体（如果存在）是否定位于该神经节的特定区域，并追踪iSLN传入神经向脑干的跨神经节投射。在10只成年猫中，将辣根过氧化物酶应用于iSLN。在72小时的存活期后，处死动物，并根据四甲基联苯胺法处理组织。反应产物定位于结状神经节的头端并延伸至迷走神经出颅处、颈静脉神经节的尾端以及颈交感神经节的后部。向孤束核的跨神经节投射主要定位于背外侧亚核，在中间亚核和间质亚核中也有大量反应产物。除了在连合亚核中观察到一个小的双侧投射外，未发现向任何其他脑干结构的投射。
