Pretterklieber Bettina, Pretterklieber Michael L, Kerschan-Schindl Katharina
Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, 8036 Graz, Austria.
Division of Anatomy, Center for Anatomy and Cell Biology, Medical University of Vienna, 1090 Vienna, Austria.
Life (Basel). 2023 Oct 21;13(10):2096. doi: 10.3390/life13102096.
In comparative anatomy, the adductor muscles are said to be quite variable and to often cause difficulty in separation. The arrangement of these muscles and the possible occurrence of the adductor minimus and obturator intermedius muscles in the albino rat has not been investigated. The aim of this study was to accurately describe the adductor muscles in the albino rat (). We hypothesized that all adductor muscles are constantly present and can be separated in a constant manner, and that the adductor minimus and obturator intermedius muscles are constant structures. Both pelvic limbs of 30 formalin-embalmed male albino rats were carefully dissected. The identification of the individual muscles was made based on their position in relation to the two branches of the obturator nerve and by comparing our results with previous findings in other species including humans. All examined rats had two gracilis muscles. The adductor longus muscle was the most superficial and smallest individual. The adductor brevis split into two parts of insertion-the femoral and genicular parts. The adductor magnus and minimus muscles could be separated constantly. The obturator intermedius muscle was a constant structure next to the obturator externus muscle. The adductor muscles of the albino rat were constantly separable and could be clearly assigned to their names. Further research is needed to investigate these muscles, especially the obturator intermedius muscle, in other species including humans.
在比较解剖学中，内收肌据说变化很大，常常难以分离。白化大鼠体内这些肌肉的排列以及内收肌最小肌和闭孔中间肌的可能存在情况尚未得到研究。本研究的目的是准确描述白化大鼠的内收肌（）。我们假设所有内收肌都始终存在，并且可以以固定的方式分离，而且内收肌最小肌和闭孔中间肌是恒定结构。对30只经福尔马林防腐处理的雄性白化大鼠的双侧后肢进行了仔细解剖。根据各肌肉相对于闭孔神经两个分支的位置，并将我们的结果与包括人类在内的其他物种先前的研究结果进行比较，来识别各个肌肉。所有检查的大鼠都有两条股薄肌。长收肌是最表浅且最小的个体。短收肌分为两个止点部分——股骨部和膝部。大收肌和小收肌可以持续分离。闭孔中间肌是紧邻闭孔外肌的恒定结构。白化大鼠的内收肌可以持续分离，并且可以明确地命名。需要进一步研究包括人类在内的其他物种的这些肌肉，尤其是闭孔中间肌。
