Brandon loves to spend many hours per week in the weightroom,and he is quite muscular.Brandon's muscles have enlarged as a result of
A) scar tissue.
B) the production of more muscle fibers.
C) the production of more troponin.
D) the production of more actin and myosin filaments.

Question

Quizplus · Accepted Answer

Brandon's muscles have enlarged due to hypertrophy, which involves the production of more actin and myosin filaments within the existing muscle fibers, increasing their size and strength.

Brandon Loves to Spend Many Hours Per Week in the Weightroom,and