Regina began an exercise program six months ago, and the muscles of her upper limbs and lower limbs are more prominent. Exercise can lead to formation of new muscle by
A)stimulating synthesis of myoglobin.
B)stimulating skeletal muscle cells to release IL-6, which stimulates satellite cells to divide, producing more muscle cells.
C)stimulating connective tissue to differentiate as muscle tissue.
D)stimulating motor neurons to divide and innervate more muscle cells.

Question

Quizplus · Accepted Answer

Exercise stimulates skeletal muscle cells to release IL-6, which in turn stimulates satellite cells to divide and produce more muscle cells, leading to the formation of new muscle. Myoglobin is a protein that helps store oxygen in muscles and is not directly involved in the formation of new muscle tissue. Connective tissue does not differentiate into muscle tissue. Motor neurons do not divide to innervate more muscle cells; instead, each motor neuron innervates many muscle cells.

Regina Began an Exercise Program Six Months Ago, and the Muscles