Do muscle cells expand

Answer 1

Muscle cells can increase in size through a process called hypertrophy, which typically occurs with resistance training or increased physical activity. This enlargement results from the synthesis of more proteins, leading to larger muscle fibers. However, muscle cells do not "expand" in the sense of stretching; instead, they grow by increasing their mass and volume. Additionally, muscle cells can also increase in number through a process called hyperplasia, although this is less common in humans.