Ichikawa S, Uchino S, Hirata Y
Department of Anatomy, Tokyo Medical College, Japan.
Lymphology. 1989 Sep;22(3):123-31.
We traced the origin of lymphatic capillaries of the chordae tendineae by serial ultrathin sections and electron microscopy of lymphatics identified first by light microscopy at the base of the chordae tendineae. Most of the lymphatics appear flattened in cross section, approximately 15 to 20 microns and 3 to 5 microns in greater and lesser diameters, respectively. Spiny (thorn-like) branchlets (about 10 microns in length) randomly projected from the sides of straight lymphatic capillaries and each was composed of a single endothelial cell with marginal zones in apposition to one another. The extreme end of a straight lymphatic capillary terminated blindly and consisted of a single endothelial cell with an ultrastructural appearance that resembled that of the spiny branchlets.
我们通过连续超薄切片以及电子显微镜追踪了腱索淋巴管的起源，这些淋巴管最初是在腱索基部通过光学显微镜鉴定出来的。大多数淋巴管在横切面上呈扁平状，其较大直径约为15至20微米，较小直径约为3至5微米。有刺（刺状）小分支（长度约10微米）从直的淋巴管侧面随机伸出，每个小分支由单个内皮细胞组成，其边缘区域彼此相邻。直的淋巴管的末端盲端由单个内皮细胞组成，其超微结构外观类似于有刺小分支。
