Georgiev Georgi P, Jelev Lazar, Ovtscharoff Vladimir A
Department of Anatomy, Histology and Embryology, Medical University of Sofia, Bulgaria.
Folia Med (Plovdiv). 2009 Jul-Sep;51(3):53-6.
During routine anatomical dissection, two cases of sternalis muscle were described. In the first case a unilateral sternalis on the left side was observed. It started from the fibres of the sternal membrane, then passed downwards in a slightly arch-shaped course and ended in the pectoral fascia at the level of 6-7 costal cartilages. In the second case, a bilateral sternalis muscle composed of two bellies (right and left) was detected. It arose from the sternal membrane covering the sternal angle. The right belly was attached to the fourth costal cartilage at the sternal junction; the left one was inserted into the third costal cartilage also at the sternal junction. In these cases sternalis muscles were supplied by perforating branches of the internal thoracic arteries and innervated by anterior branches of the intercostal nerves. We have also reviewed the available literature concerning the clinical importance of the sternalis and summarized it clearly for clinical anatomists, plastic surgeons, breast surgeons and radiologists.
在常规解剖过程中，描述了两例胸骨肌的情况。第一例中，观察到左侧有一条单侧胸骨肌。它起始于胸骨膜纤维，然后以略呈拱形的路径向下走行，止于第6 - 7肋软骨水平的胸肌筋膜。第二例中，检测到一条由两个肌腹（右侧和左侧）组成的双侧胸骨肌。它起自覆盖胸骨角的胸骨膜。右侧肌腹附着于胸骨交界处的第四肋软骨；左侧肌腹也插入胸骨交界处的第三肋软骨。在这些病例中，胸骨肌由胸廓内动脉的穿支供血，由肋间神经的前支支配。我们还回顾了有关胸骨肌临床重要性的现有文献，并为临床解剖学家、整形外科医生、乳腺外科医生和放射科医生进行了清晰总结。
