Sugiura Y, Kitoh J
Anat Embryol (Berl). 1984;170(1):21-8. doi: 10.1007/BF00319454.
The extent and laminar arrangement of the substantia gelatinosa (SG) were examined in the cervical spinal cord of the shrew. Between C1 and C6 or C7 the three dorsal layers on either side of the gray matter were confluent at the commissura posterior grisea in shrews of both sexes. Lamina I was thin with no large marginal cells. Lamina II comprised the major part of the SG, consisting of outer cellular and inner neuropil layers. Lamina III was composed of a meshwork of axon terminals, dendritic profiles and myelinated fibers. Unlike the situation in other mammals, in shrew the incidence of axon terminals with round vesicles was similar in the three uppermost layers, but the occurrence of terminal profiles with flat vesicles was significantly greater in deeper laminae. Lamina IV was restricted to the dorsal horn and did not extend through the midline.
在鼩鼱的颈脊髓中检查了胶状质（SG）的范围和分层排列。在C1至C6或C7之间，两性鼩鼱灰质两侧的三个背层在灰质后连合处融合。I层很薄，没有大的边缘细胞。II层构成了SG的主要部分，由外层细胞层和内层神经毡层组成。III层由轴突终末、树突轮廓和有髓纤维的网络组成。与其他哺乳动物的情况不同，在鼩鼱中，最上面三层中具有圆形囊泡的轴突终末的发生率相似，但具有扁平囊泡的终末轮廓在更深层中的发生率明显更高。IV层局限于背角，不延伸至中线。
