Study Question Nine

• How can you compare and contrast the lives of bones and MUSCLES with respect to the topics of growth and exercise?

  Muscles and bones both increase or grow stronger when activity or exercise is done. Muscles can either go through hypertrophy which is a growth period that adds muscle mass by increasing the mass of each fiber through exercise or activity, or atrophy during periods of inactivity where the muscles lose myofilaments resulting in a decrease in muscle fibers and a decrease in muscle mass.
• How can you compare and contrast the lives of BONES and muscles with respect to the topics of growth and exercise?

  On the other hand, osteoclast activity will outpace osteoblast activity with age, resulting in a weaker skeleton. However, if a young person breaks a bone, their bone will be repaired to become stronger than old bone.