Kuehn D P, Azzam N A
Cleft Palate J. 1978 Oct;15(4):349-59.
Palatoglossus and the anterior faucial pillar were studied using three techniques: 1) gross dissection, 2) radiographic filming, and 3) histological sectioning. The total subject sample included 25 normal adult male and female cadavers. Palatoglossus has a flattened belly within the faucial pillar, a fan-shaped termination within the palate, and a vertical tapering termination within the tongue. The region of attachment into the palate differs among individuals which could influence its relative importance in velar versus lingual movement. The pillar contains a large investment of loose connective tissue which also penetrates palatoglossus. The collagenous framework would apparently allow expansion of the pillars but also prevent rupture of the tissue at extreme extension. The anterior portion of the pillar contains a sheath of elastic fibers with a density gradient increasing from the tongue to the soft palate. The elastic fibers, which also intermingle with palatoglossus fascicles, could provide a restorative force in lowering the palate, helping to keep the nasopharyngeal airway patent.
1）大体解剖，2）放射摄影，3）组织切片。总样本包括25具正常成年男性和女性尸体。腭舌肌在咽柱内有扁平的肌腹，在腭部呈扇形终止，在舌内呈垂直逐渐变细的终止。其附着于腭部的区域因人而异，这可能会影响其在腭部与舌部运动中的相对重要性。咽柱含有大量疏松结缔组织，这些结缔组织也穿透腭舌肌。胶原纤维框架显然会允许咽柱扩张，但也能防止组织在极度伸展时破裂。咽柱前部含有一层弹性纤维，其密度梯度从舌部向软腭逐渐增加。这些弹性纤维也与腭舌肌束相互交织，在降低腭部时可提供恢复力，有助于保持鼻咽气道通畅。
