Final answer:
The progeny of activated satellite cells are responsible for proliferating, differentiating, and fusing to form new muscle fibers, particularly in skeletal muscle tissue. These cells play a key role in muscle repair and regeneration. Myoblasts, derived from the mesoderm, fuse to form multinucleated skeletal muscle fibers.satellite cells are responsible for
Step-by-step explanation:
The progeny of activated satellite cells proliferate, differentiate, and fuse to form new muscle fibers. Satellite cells are a type of stem cell found in skeletal muscle that can be activated to aid in the repair and regeneration of muscle tissue. When muscle damage occurs, these satellite cells proliferate and differentiate into myoblasts, which then fuse with damaged muscle fibers or with each other to form new muscle tissue.
Muscle tissue develops from myoblasts derived from the embryonic layer called the mesoderm. During muscle formation, myoblasts migrate to various parts of the body where they fuse to form a syncytium, or myotube, a process which leads to the formation of multinucleated skeletal muscle fibers. These muscle fibers have many nuclei because the nucleus of each contributing myoblast remains intact within the mature muscle cell. In contrast to skeletal muscle, cardiac and smooth muscle cells are generally not multinucleated because their forming cells do not undergo fusion.