the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue
双语例句
1. Mesenchymal stem cell (MSC), originating from mesoblast, resides mainly in post-natal bone marrow as well as human umbilical cord blood, and coexists with hematopoietic stem cell (HSC).
间充质干细胞（MSC）起源于中胚层，主要位于成体骨髓和人胎儿脐血，与造血干细胞共存。
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2. Mesenchymal stem cell (MSC), originating from mesoblast, resides mainly in post-natal bone marrow as well as human umbilical cord blood, and coexists with hematopoietic stem cell (HSC).
