NEUROMUSCULAR COMPARTMENTS OF LARYNGEAL MUSCLES

在NIDCD的国家战略研究计划报告中， 关于语音研究优先事项的第一项建议如下： “ 组织化学和运动单位组织“（第122页）。 使用此 建议作为基础，进行了初步工作，以确定这些 狗喉部的间隔 结果发现，所有的肌肉，除了 外侧环杓肌 肌肉. 这块肌肉有两个外侧 隔室，垂直和倾斜，这似乎是造成横向 杓状软骨的滑动和向后摆动 在灵感。 内侧隔室被称为水平隔室， 似乎旋转杓状软骨以精确定位 发声时的发声过程。 据推测，大多数喉肌是由 神经肌肉间室 有可能这些隔间 分为两个主要系统：中线发声系统， 杓间横突和杓间后内侧 环杓肌、甲杓肌和环甲肌 关节系统，由杓间斜肌、外侧 环杓软骨和环杓后软骨外侧部， 甲杓肌和环甲肌。 在拟议的研究中，将检查人类喉肌， 隔间 神经肌肉区室将由肌纤维定义 定向、筋膜屏障和它们的神经供应模式。 隔室内的专业化将由它们的ATP酶定义。 肌肉纤维以及运动和感觉轴突的内容和排列。 所有的肌肉都将被检查，但重点将放在 甲杓状软骨，那里似乎有大量的 这些子隔室相互作用以控制声带振动， 发声 这项研究预计将对所有 神经喉学的一些方面。

In the report of the National Strategic Research Plan by the NIDCD, the first recommendation for research priorities in voice reads as follows: "Valuated the compartmentalization of laryngeal muscles with regard to histochemistry and motor unit organization..."(p.122). Using this recommendation as a basis, preliminary work was performed to define these compartments in the canine larynx. It was found that all muscles except the lateral cricoarytenoid. Muscle. This muscle has two lateral compartments, the vertical and oblique, which appear to cause the lateral sliding and backward rocking of the arytenoid cartilage which is seen during inspiration. The medial compartment is termed the horizontal and appears to swivel the arytenoid cartilage in order to precisely position the vocal process during phonation. It is hypothesized that most laryngeal muscles are composed of neuromuscular compartments. It is possible that these compartments are organized into two main systems: a midline phonatory system, composed of the transverse interarytenoid and the medial parts of the posterior cricoarytenoid, thyroarytenoid and cricothyroid muscles; a lateral articulatory system, composed of the oblique interarytenoid, lateral cricoarytenoid, and the lateral parts of hie posterior cricoarytenoid, thyroarytenoid and cricothyroid muscles. In the proposed study human laryngeal muscles will be examined for compartments. Neuromuscular compartments will be defined by muscle fiber orientation, fascial barriers, and patterns of their nerve supply. Specialization within compartments will be defined by the ATPase of their muscle fibers and the content and arrangement of motor and sensory axons. All muscles will be examined, however the emphasis will be placed on the thyroarytenoid, where there appears to be a large number of subcompartments which interact to control vocal cord vibration during phonation. This study is expected to have critical relevance for all aspects of neurolaryngology.