Wang J, Watanabe T, Suzuki M, Ohmori Y, Naito J
Department of Veterinary Anatomy, School of Agriculture, Nagoya University, Japan.
Anat Histol Embryol. 1996 Dec;25(4):277-82. doi: 10.1111/j.1439-0264.1996.tb00092.x.
The distribution in the chicken of motoneurons innervating the hyolingual muscles, i.e. the Mm. hyoglossus rostralis (HR), hyoglossus obliquus (HO), ceratoglossus (CG), interceratobranchialis (CB), stylohyoideus (YH), serpihyoideus (PH) and cricohyoideus (CR), and the laryngotracheal muscles, comprising the Mm. tracheolateralis (TL), cleidohyoideus (CL) and sternotrachealis (ST), was examined by retrograde transport of horseradish peroxidase conjugated with wheat-germ agglutinin. Labelled motoneurons are only found in the hypoglossal nucleus. The rostrocaudal distributions of motoneurons projecting to hyolingual muscles are restricted in the hypoglossal nucleus cranial to the obex, and those projecting to laryngotracheal muscles are distributed in the more caudal part of hypoglossal nucleus. Detailed analysis of the data showed that the most rostrally positioned motoneurons in the hypoglossal nucleus supplied to the PH, followed by the CG, CB, HR, YH, HO, CR, TL, CL and ST in that order, overlapping each other. In the hypoglossal nucleus motoneurons innervating the PH and YH have the smallest perikarya. Of the motoneurons in the hypoglossal nucleus, those supplying the laryngotracheal muscles (CL and TL) have the largest perikarya. Motoneurons innervating the other muscles are intermediate in size.
通过结合小麦胚芽凝集素的辣根过氧化物酶逆行运输，研究了支配舌骨舌肌（即喙舌骨肌（HR）、斜舌骨肌（HO）、角舌骨肌（CG）、鳃间肌（CB）、茎突舌骨肌（YH）、蛇状舌骨肌（PH）和环甲舌骨肌（CR））以及构成气管外侧肌（TL）、锁骨舌骨肌（CL）和胸骨气管肌（ST）的喉气管肌的运动神经元在鸡体内的分布。仅在舌下神经核中发现标记的运动神经元。投射到舌骨舌肌的运动神经元在延髓闩上方的舌下神经核中的 rostrocaudal 分布受限，而投射到喉气管肌的运动神经元分布在舌下神经核的更尾侧部分。对数据的详细分析表明，舌下神经核中最靠前定位的运动神经元供应给 PH，其次依次是 CG、CB、HR、YH、HO、CR、TL、CL 和 ST，它们相互重叠。在舌下神经核中，支配 PH 和 YH 的运动神经元的胞体最小。在舌下神经核的运动神经元中，供应喉气管肌（CL 和 TL）的运动神经元的胞体最大。支配其他肌肉的运动神经元大小居中。
