恒河猴面部皮肤毛直肌的分布与外观

Anatomia Pub Date : 2022-04-08 DOI:10.3390/anatomia1010004
Inga May, K. Mätz-Rensing, C. May
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引用次数: 0

摘要

虽然在许多猴子物种中都有立毛平滑肌的存在,但其区域特征迄今尚未得到很好的记录。我们的目的是研究这方面的恒河猴面对不同区域的毛被。利用光镜和免疫组化(抗平滑肌α -肌动蛋白抗体)对6只雄性和雌性猴子的8个不同区域进行了研究。我们确定了两个区域(嘴唇和眼睑)的绒毛没有显示立毛肌。眼睑上的毛又小又短;在唇部,绒毛被口轮匝肌的横纹肌纤维包围。在所有其他区域(额部、前额、脸颊、下巴),牛皮毛含有具有类似形态的立毛肌。只有在下巴区域,那里有来自面部肌肉的额外横纹肌,立毛肌更薄。所有触须均与面肌横纹肌纤维束有密切关系。他们从未发育出与直毛等量的平滑肌束。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distribution and Appearance of Arrector Pili Muscle in the Skin of the Rhesus Monkey Face
Although the presence of an arrector pili smooth muscle is documented in many monkey species, its regional peculiarities are hitherto not well documented. We aimed to study this aspect in the face of rhesus monkeys with different areas of hair coat. Eight different regions of six monkeys (male and female) were studied using light microscopy and immunohistochemistry (antibody against smooth muscle alpha actin). We identified two regions (lips and eyelids) with vellus hairs that did not show an arrector pili muscle. In the eyelids, the hairs are rather small and short; in the lips, the vellus hairs were surrounded by striated muscle fibers from the orbicularis oris muscle. In all other regions (frontal region, forehead, cheek, chin), the vellus hairs contained an arrector pili muscle with comparable morphology. Only in the chin region, where additional striated muscles from the face muscles were present, the arrector pili muscles were thinner. All vibrissae showed a close relation to striated muscle fiber bundles of the facial muscles. They never developed smooth muscle bundles assigned as arrector pili equivalent.
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