Yeği N Mehmet E, Bilge Okan, Çelik Servet
Plastic, Reconstructive and Aesthetic Surgery, Istinye University Hospital, Istanbul, TUR.
Anatomy, Ege University Faculty of Medicine, Izmir, TUR.
Cureus. 2023 Mar 16;15(3):e36214. doi: 10.7759/cureus.36214. eCollection 2023 Mar.
Nasal musculature anatomy is a topic that plastic surgeons pay attention to. However, the presence and role of the myrtiformis muscle (MM) remain controversial. To elucidate these aspects, an anatomy-based study was conducted.
Seven midsagittally split and two total cadaver head's nasal bases, embalmed with modified Larssen solution (MLS), were dissected for MM anatomy. The features of this muscle were photographed, and a video of its function was recorded.
It was found that MM originates from the maxillary alveolar process and continues as two heads, one reaching the alar base with spicular fibrotendinous endings and the other extending to depressor septi nasi fibers. Owing to its bi-vectoral muscle fibers, MM is found to constrict the nares by simultaneously forcing the alar base and lowering the columella. It was also found that left-sided muscles were larger than right-sided muscles.
The MM is found to be a constrictor muscle of the nares in this study, contrary to recent observations.
鼻部肌肉解剖是整形外科医生关注的一个话题。然而，梨状肌（MM）的存在及其作用仍存在争议。为阐明这些方面，我们进行了一项基于解剖学的研究。
对7个经矢状面中部劈开以及2个用改良拉尔森溶液（MLS）防腐处理的完整尸体头部的鼻基底进行解剖，以研究MM的解剖结构。拍摄了该肌肉的特征，并记录了其功能的视频。
发现MM起自上颌牙槽突，延续为两个肌头，一个以针状纤维腱性末端止于鼻翼基部，另一个延伸至降鼻中隔肌纤维。由于其双向量肌纤维，发现MM通过同时牵拉鼻翼基部和下拉鼻中隔来收缩鼻孔。还发现左侧肌肉比右侧肌肉大。
在本研究中发现MM是鼻孔的收缩肌，这与最近的观察结果相反。
