crura curvilineum的用法和样例：
例句
- The lateral nasal and columellar arteries then meet over the dorsal region, forming an alar arcade that runs along the cephalic margin of the lateral crura.
侧鼻动脉和鼻小柱动脉在鼻背区域汇合，形成沿外侧脚头侧缘走行的鼻翼弓。 - The lower leg is represented by the medial crura whereas each upper leg consists of a lateral crural complex based bilaterally on the piriform aperture.
下方的腿代表的是内侧脚，同时上方两条腿则代表双侧的梨状孔上的外侧脚复合体。
