Final answer:
A myoblast is the embryonic cell from which a muscle develops.
Step-by-step explanation:
The embryonic cell from which a muscle develops is called a myoblast. Myoblasts are the precursor cells of muscle tissue and are responsible for muscle growth and repair. They differentiate into mature muscle fibers, which are capable of contracting and producing movement. For example, during embryonic development, myoblasts fuse together to form the skeletal muscles of the body.
Learn more about Myoblast as an embryonic cell