Hamano K, Mannen H, Ishizuka N
J Comp Neurol. 1978 Sep 1;181(1):1-15. doi: 10.1002/cne.901810102.
Using Golgi-stained serial sections obtained at the sacro-caudal levels of the cat spinal cord, it was possible to reconstruct the trajectory of primary afferents. They were classified into two groups: reliable primary afferents directly traced from the dorsal root and probable primary afferents traced from the dorsal funiculus or Lissauer's tract. The diameters of the reliable primary afferents vary from 0.88-1.88 mum. According to their courses, reliable primary afferents as well as probable primary afferents were classified into three groups: the first is distributed to both medial and lateral halves of the dorsal horn, the second to the medial half, and the third to the lateral half. Commissural fibers were also observed among the probable primary afferents. The rostro-caudal and medio-lateral extents of reliable primary afferents are found to be between 250 and 950 mum and 270 and 700 mum respectively, while those of the probable primary afferents were between 125 and 670 mum and 270 and 1,640 mum respectively. These primary afferent fibers are connected with at least two or more laminae of the dorsal horn gray matter.
利用猫脊髓骶尾节段获得的高尔基染色连续切片，有可能重建初级传入纤维的轨迹。它们被分为两组：直接从背根追踪到的可靠初级传入纤维和从背索或利绍尔束追踪到的可能初级传入纤维。可靠初级传入纤维的直径在0.88 - 1.88微米之间。根据其走行，可靠初级传入纤维以及可能初级传入纤维被分为三组：第一组分布于背角的内侧和外侧半部，第二组分布于内侧半部，第三组分布于外侧半部。在可能初级传入纤维中也观察到了连合纤维。可靠初级传入纤维的头尾向和内外侧向范围分别在250至950微米和270至700微米之间，而可能初级传入纤维的范围分别在125至670微米和270至1640微米之间。这些初级传入纤维与背角灰质的至少两层或更多层相连接。
