解剖25具尸体的50侧下肢,观察测量了股直肌的形态、血管神经及其体表投影。股直肌有上下两组血管神经束;下组血管是该肌主要的营养血管,其口径、长度适于显微吻合。本文结合文献阐述并讨论了其临床解剖要点。 Twenty-five bodies of the lower extremities were dissected, observing and measuring the shape of the rectus femoris, the vascular nerves and their body surface projections. The rectus femoris has two groups of vascular nerve bundles; the lower group of blood vessels is the main nutrient vessel of the muscle, and its caliber and length are suitable for microsurgical anastomosis. This article combined with the literature elaborated and discussed the main points of clinical anatomy.