Pospieszny N, Bruzewicz S
Department of Veterinary Anatomy and Histology, Wrocław Agricultural Academy, Poland.
Ann Anat. 1998 Aug;180(4):353-9. doi: 10.1016/s0940-9602(98)80042-3.
The aim of our experiment was to establish the morphological changes occurring in the cervical part of sympathetic trunk of the pig during its fetal development. The experiment was conducted on 38 swine fetuses, divided into three developmental groups. The investigated section in 6-11-week-old fetuses usually consisted of 3 ganglia. In the oldest age group only 2 ganglia appeared--the middle cervical ganglion was usually not observed. The statistical parameters referring to the cranial cervical ganglion (standard deviation, coefficient of variation) increase with the age of the fetus, suggesting that the greater part of the development occurs at the end of gestation. The investigated ganglion was negatively allometric in relation to body length during the whole of gestation. The most frequent arrangements of the cervicothoracic ganglia noted in the fetuses investigated were: [GCca + GTh1 + GTh2] on the left side of the body, and [GCca + (GTh1 + GTh2)] on the right.
我们实验的目的是确定猪交感干颈部在胎儿发育过程中发生的形态变化。该实验对38头猪胎儿进行，分为三个发育组。6至11周龄胎儿的研究部位通常由3个神经节组成。在最年长的年龄组中，仅出现2个神经节——通常未观察到颈中神经节。与颅颈神经节相关的统计参数（标准差、变异系数）随胎儿年龄增加，表明大部分发育发生在妊娠末期。在整个妊娠期，所研究的神经节相对于体长呈负异速生长。在所研究的胎儿中，最常见的颈胸神经节排列方式为：身体左侧为[GCca + GTh1 + GTh2]，右侧为[GCca + (GTh1 + GTh2)]。
