intraembryonic mesoderm

例句：

1. 1. The study of embryonic mesoderm is crucial for understanding thedevelopment of early mammals.
   研究胚胎内中胚层对于理解早期哺乳动物的发展至关重要。
2. 2. Intraembryonicmesoderm cells are responsible forforming the neural tube and the primitive nervous system.
   胚胎内中胚层细胞负责形成神经管和原始神经系统。
3. 3.The differentiation of intraembryonic mesoderm into various cell types isa complex process that requires precise regulation.
   胚胎内中胚层向不同细胞类型的分化是一个复杂的过程，需要精确的调控。