Trnková-Hergetová E, Dylevský I
Department of Human Anatomy, 1st Medical Faculty, Charles University, Prahue, Czech Republic.
Funct Dev Morphol. 1994;4(2):109-12.
This paper demonstrates the structure and development of the layer of mm. contrahentes in Felis catus (Carnivora). Ontogenesis of the muscle layer was studied on 35 histological series of embryonal extremities and by microdissections of palmar musculature in the domestic cat. It was found that three mm. contrahentes were formed passing to the first, second and fifth digits. A compact anlage of the muscle layer (similar to that in embryos of many mammalian species) has been observed only in foetuses of 15-16 mm crown-rump length. Differentiation of the anlagen of the individual muscles takes place in the foetuses of 20-23 mm crown-rump length.
本文展示了家猫(食肉目)肉垫收缩肌层的结构与发育。通过对35个胚胎肢体组织学切片系列以及家猫掌部肌肉的显微解剖,研究了肌肉层的个体发生。结果发现,有三块肉垫收缩肌分别通向第一、第二和第五趾。仅在冠臀长为15 - 16毫米的胎儿中观察到了肌肉层紧密的原基(类似于许多哺乳动物胚胎中的情况)。各肌肉原基的分化发生在冠臀长为20 - 23毫米的胎儿中。