mesoderm
/ˈmɛzoʊˌdɜrm/
noun
- The middle layer of cells in an embryo, which develops into muscles, bones, blood, and other internal organs.
- A problem in the mesoderm can lead to birth defects in muscles or bones.
- Scientists study how the mesoderm gives rise to different tissues in the body.
- During early development, the mesoderm forms the heart and circulatory system.