n.中胚層
It is involved in mesoderm formation and left-right axis determination. 它與胚胎中胚層的形成以及左右體軸的決定有關(guān)。
Fibroblasts are mesenchymal cells, which are derived from the embryonic mesoderm. 成纖維細(xì)胞是來源于胚胎中胚層的間充質(zhì)細(xì)胞。