Cheung L K
Department of Oral and Maxillofacial Surgery, University of Hong Kong.
J Anat. 1996 Oct;189 ( Pt 2)(Pt 2):431-8.
Knowledge as to the blood supply of the human temporalis muscle is limited to its extramuscular path and relations, little information existing about the intramuscular vascular architecture. To investigate the 3-dimensional vascular network in the human temporalis muscle, in 5 fresh cadavers an infusion of methylmethacrylate resin was made via the carotid vessels with subsequent removal of the organic tissues by a corrosion process. The vascular corrosion casts of the temporalis muscle were studied by stereomicroscopy and scanning electron microscopy. In 6 well perfused muscle specimens, the temporalis muscle was found to be consistently supplied by 3 arteries: the anterior and posterior deep temporal arteries, and the middle temporal artery. Each primary artery branched into the secondary arterioles and then terminal arterioles. The venous network accompanied the arteries, and double veins pairing a single artery was a common finding. Arteriovenous anastomosis was absent, whereas arterioarterial and venovenous anastomoses were common. The capillaries formed a dense interlacing network with an orientation along the muscle fibres. Understanding of the intramuscular angioarchitecture of the temporalis provides the vascular basis for surgical flap manipulation and splitting design.
关于人类颞肌血液供应的知识仅限于其肌外路径和关系，关于肌内血管结构的信息很少。为了研究人类颞肌的三维血管网络，在5具新鲜尸体中，通过颈动脉注入甲基丙烯酸甲酯树脂，随后通过腐蚀过程去除有机组织。通过立体显微镜和扫描电子显微镜研究颞肌的血管腐蚀铸型。在6个灌注良好的肌肉标本中，发现颞肌始终由3条动脉供血：颞深前动脉、颞深后动脉和颞中动脉。每条主要动脉分支为二级小动脉，然后是终末小动脉。静脉网络与动脉伴行，常见一条动脉与两条静脉配对。不存在动静脉吻合，而动脉与动脉、静脉与静脉吻合很常见。毛细血管形成密集的交错网络，其方向沿肌纤维排列。了解颞肌的肌内血管结构为手术皮瓣操作和劈开设计提供了血管基础。
