Question

multiple choice question

which cells help regenerate damaged skeletal muscle?

myoblasts
satellite cells
myocytes
fibroblasts

Explanation:

Identify the function of satellite cells

Skeletal muscle fibers are multinucleated and cannot undergo mitosis to replicate. Instead, specialized stem cells called satellite cells (located between the sarcolemma and the endomysium) proliferate and differentiate to repair or replace damaged muscle fibers.

Evaluate the incorrect options

• Myoblasts: These are embryonic progenitor cells that fuse to form muscle fibers during development, but they are not the primary quiescent stem cells residing in mature muscle tissue.
• Myocytes: These are mature, fully differentiated muscle cells (muscle fibers) that lack the ability to divide and regenerate damaged tissue.
• Fibroblasts: These cells produce collagen and extracellular matrix, contributing to scar tissue formation (fibrosis) rather than functional muscle regeneration.

Answer:

• Myoblasts
• Satellite cells (Correct answer)
• Myocytes
• Fibroblasts