坐骨神经经过骨盆上称为坐骨大孔的开口，通常走行于梨状肌的下方，因此梨状肌的疾患或痉挛或导致与坐骨神经痛症状相似的腿痛。

The sciatic nerve travels through an opening in the pelvis called the greater sciatic foramen, and typically runs below the piriformis muscle.

youdao

结果造影显示颌下腺腺体呈倒梨状位于下颁角后下方，主导管细长由腺体前缘发出，水平向前走行。

ResultsSialograms showed a long, horizontal main excretory duct and a pear-shaped gland located infero-posterior to the angle of the mandible.

youdao