Sedlmayr Jayc C, Kirsch Claudia F E, Wisco Jonathan J
Division of Integrative Anatomy, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California 90095-1732, USA.
Clin Anat. 2009 Sep;22(6):655-64. doi: 10.1002/ca.20837.
The structure of the temporalis muscle was examined in detail from cadaveric specimens (32 specimens from 16 subjects: 5 males, average age 80.6 years; 11 females, average age 88.6 years) and Computerized Tomography (CT) and T1-weighted Magnetic Resonance (MR) images from normal clinical patients (10 females: average age 45.0 years). Three parts of the muscle were clearly delineated in all cadaveric specimens: (1) the classically recognized superficial part, (2) a zygomatic part, and (3) a complex deep part. In one female specimen, the superficial temporalis demonstrated extensive insertions into the zygomatic process and temporomandibular joint. The zygomatic temporalis originates from the zygomatic arch to insert into the superficial part of the temporalis as it inserts into the lateral surface of the coronoid process. In all specimens, the deep temporalis contained muscle bundles that originated from various crests along the anterior surface of the temporal fossa and inserted into the internal aspect of the coronoid process and retromolar triangle, interdigitating with the buccinator, mylohyoid, and superior constrictor muscles. The confluence of muscle fibers into the buccinator muscle was confirmed in all CT/MRI images. The deep and zygomatic parts described were regarded as accessory muscle bellies previously, but are demonstrably part of the temporalis muscle as a whole.
从尸体标本（来自16名受试者的32个标本：5名男性，平均年龄80.6岁；11名女性，平均年龄88.6岁）以及正常临床患者的计算机断层扫描（CT）和T1加权磁共振（MR）图像（10名女性：平均年龄45.0岁）中详细检查了颞肌的结构。在所有尸体标本中，该肌肉的三个部分都清晰可辨：（1）传统上公认的浅层部分，（2）颧部，以及（3）复杂的深层部分。在一个女性标本中，颞浅肌在颧突和颞下颌关节处有广泛的附着。颞颧肌起自颧弓，在其插入冠状突侧面时插入颞肌的浅层部分。在所有标本中，颞深肌包含一些肌束，这些肌束起自颞窝前表面的各个嵴，插入冠状突内侧面和磨牙后三角，与颊肌、下颌舌骨肌和咽上缩肌相互交错。在所有CT/MRI图像中均证实了肌纤维与颊肌的融合。所描述的深层和颧部以前被认为是附属肌腹，但显然是整个颞肌的一部分。
