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1·The innervation of the medial pterygoid muscle can be divided into low branch(38 cases, 63%)and high branch types(22 cases, 37%).

翼内肌由下领神经前干发出的分支支配，可分成低分支型（38例，占63％）和高分支型（22例，占37％）两型。

2·Mandibular elevators include the masseter, temporalis, and medial pterygoid muscles, while the lateral pterygoid protrudes the mandible.

下颔包含嚼肌、颞骨肌和内翼肌，而外翼肌则是使下颔突出。

3·Results The main masticatory muscles of miniature pigs include masseter muscle, temptory muscle, lateral pterygoid muscle, medial pterygoid muscle and zygomaticomandibular muscle.

结果小型猪主要咀嚼肌包括嚼肌、颞肌、翼内肌、翼外肌及颧弓下颌肌；

4·On axial HRCT, the palatovaginal canal was located behind of the pterygopalatine fossa and medial of the front part of pterygoid canal, showing narrow cone shaped.

横断面上腭鞘管位于翼腭窝的后方，翼管前端的内侧，呈窄锥形。

5·Conclusion The lateral pterygoid muscle, styloid process, pterygoid process and its medial, lateral pterygoid plate were important anatomical marks for CT imaging diagnosis.

结论翼外肌、茎突、翼突及其内、外侧板是CT等影像诊断的重要解剖学标志。