梨状肌是附着在骶骨和大腿骨上的强大的回旋肌，对他们的拉伸有损于骶髂关节的稳定性。
The piriformis muscles, strong external rotators of the thigh, attach to the sacrum and the femur. Stretching them can increase S-I joint instability.
上颌骨额突由梨状孔和泪嵴向头侧方向伸出，与额骨和鼻骨相接。
The maxillary processes extend in a cephalad direction form the piriform aperture to the lacrimal crest, uniting with the frontal and nasal bones.
目的为临床提供梨状孔和周边骨性结构的解剖学测量数据。
Objective to made the anatomic observation on the piriform aperture and its peripheral bone structure for the clinical reference.
目的为临床提供梨状孔和周边骨性结构的解剖学测量数据。
Objective to made the anatomic observation on the piriform aperture and its peripheral bone structure for the clinical reference.
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