cranial fontanelles

例句：

1. 1. The child's cranial fontanelle is still open, indicating that he has not yet fully developed his brain.
   孩子的颅骨前囟还未闭合，说明他的脑部发育尚未完全。
2. 2. During the development of the fetus, the cranial fontanelles are responsible for the formation of the brain and spinal cord.
   胎儿在发育过程中，颅骨前囟负责形成大脑和脊髓。
3. 3. In some cases, a ruptured or enlarged cranial fontanelle can lead to complications such as seizuresor hydrocephalus.
   在某些情况下，破裂或扩大的颅骨前囟可能导致癫痫或脑积水等并发症。