The nose begins aboe the orbits as two widely separated nasal placodes, which moe medially and inferiorly as the nasal septum thins and the medial nasal folds fuse.

• 鼻子最初是分隔很远的两个鼻板而且在眼眶的上面，逐渐向下及中间移动，鼻中膈变薄并融合。