Yoshie S, Ogawa T
Arch Histol Jpn. 1983 Feb;46(1):131-5. doi: 10.1679/aohc.46.131.
An electron microscope study of the Harderian gland of the snake, Rhabdophis tigrinus, revealed the occurrence of a myoid cell in the glandular body. The myoid cell, in oval profile, is located in the perivascular space and enveloped by a basement membrane. The plasma membrane of the cell is studded with a number of vesicular caveoli. The myoid cell cytoplasm is largely occupied by myofilaments which do not form discrete bundles of myofibrils. The striations comprise the A and I bands together with Z lines, but neither an M nor an H zone is detectable. Although the transverse tubule appears to be scarce, the sarcoplasmic reticulum is well developed. No triadic configuration is observed. The cytoplasm includes a few numbers of mitochondria, sarcoplasmic reticulum, fat droplets, dense membrane-bound granules and free ribosomes. The histological characteristics of the present myoid cell are compared to those of identical cells commonly existing in the thymus.
对虎斑颈槽蛇哈德氏腺的电子显微镜研究显示，腺体内存在肌样细胞。肌样细胞呈椭圆形，位于血管周围间隙，被基底膜包裹。细胞的质膜上布满了许多囊状小窝。肌样细胞的细胞质主要由肌丝占据，这些肌丝并未形成离散的肌原纤维束。横纹包括A带、I带以及Z线，但未检测到M带和H带。尽管横小管似乎稀少，但肌浆网发育良好。未观察到三联体结构。细胞质中包括少量线粒体、肌浆网、脂肪滴、密集的膜结合颗粒和游离核糖体。将当前肌样细胞的组织学特征与胸腺中常见的相同细胞的特征进行了比较。
