noun
- the middle layer of cells in an embryo that develops into muscles, bones, blood vessels, and other tissues
Usage: biology
Examples
- The mesoderm gives rise to the skeletal and muscular systems.
- During embryonic development, the mesoderm forms between the ectoderm and endoderm.
- Heart muscle develops from mesodermal tissue.
- The mesoderm is one of the three primary germ layers.
- Blood vessels originate from the mesoderm during early development.
- Students learned about how the mesoderm differentiates into various organ systems.