The part of the embryonic mesoderm,consisting of loosely packed,unspecialized cells set in a gelatinous ground substance,from which connective tissue,bone,cartilage,and the circulatory and lymphatic systems develop.
英
美
- 間葉細胞胚胎的中胚層部分，由生長(cháng)于膠狀基質(zhì)的、結構松散的、無(wú)特定功能的細胞組成，這些細胞將會(huì )發(fā)育成結締組織、骨、軟骨、血液及淋巴系統
