Coil J D, Norgren R
J Auton Nerv Syst. 1979 Dec;1(2):203-10. doi: 10.1016/0165-1838(79)90017-1.
The central cell groups that give rise to the motor axons that travel in the subdiaphragmatic vagus were re-examined in the rat by transecting the dorsal or ventral vagus near the stomach and incubating the nerve stump in crystalline horseradish peroxidase (HRP). An exceedingly large percentage of cells was labeled throughout the dorsal motor nucleus of the vagus (mX), with labeled cells extending even beyond the rostro-caudal limits of the nucleus usually assigned on the basis of cytoarchitecture alone. Different patterns of cell-labeling could be correlated with one or the other of the two vagal branches. Incubation of the ventral branch labeled cells only in the left mX, while incubation of the dorsal branch labeled cells on both sides, although more extensively on the right. HRP-positive somata were also observed bilaterally in the nucleus ambiguus (NA) after incubation of either branch of the subdiaphragmatic vagus; this finding is in contrast to previous accounts in which motor fibers from NA were considered to project only to cervical and thoracic structures. These results suggest that mX and NA are responsible for a substantial component of abdominal innervation in the rat.
通过在靠近胃部处横断背侧或腹侧迷走神经，并将神经残端置于结晶辣根过氧化物酶（HRP）中孵育，对大鼠中发出走行于膈下迷走神经的运动轴突的中枢细胞群进行了重新研究。迷走神经背核（mX）中绝大部分细胞被标记，标记细胞甚至延伸至通常仅基于细胞结构划分的该核的头尾界限之外。不同的细胞标记模式可与两个迷走分支中的一个或另一个相关联。腹侧分支孵育仅使左侧mX中的细胞被标记，而背侧分支孵育双侧细胞均被标记，尽管右侧更为广泛。膈下迷走神经任一 分支孵育后，双侧疑核（NA）中也观察到HRP阳性胞体；这一发现与之前认为来自NA的运动纤维仅投射至颈部和胸部结构的观点相反。这些结果表明，mX和NA在大鼠腹部神经支配中起重要作用。
