In the early embryo, the heart and skeletal muscles are derived from the:
A)ectoderm
B)mesoderm
C)endoderm
D)intraderm

Question

Quizplus · Accepted Answer

The mesoderm is the middle germ layer of the developing embryo and gives rise to the musculoskeletal system including the heart and skeletal muscles. The ectoderm covers the surface of the embryo and gives rise to the skin and nervous system. The endoderm lines the digestive and respiratory tracts. There is no such germ layer as intraderm.

In the Early Embryo, the Heart and Skeletal Muscles Are