Colorado CNA Practice Exam

Normal age-related changes for the musculoskeletal system include:

1. Bones become more brittle

2. Joints become more flexible

3. Muscles weaken and lose tone

4. Weight gain in muscles

The correct answer is: Bones become more brittle

As we get older, our bodies go through a natural aging process, and this includes changes in our musculoskeletal system. As we age, our bones do become more brittle, making them more susceptible to fractures and breaks. This is because our bodies produce less collagen and other structural proteins, leading to a decrease in bone density. Option B, joints becoming more flexible, is incorrect because the natural aging process actually leads to a decrease in joint flexibility. This is due to a decrease in the production of synovial fluid, which helps lubricate and cushion our joints. Option C, muscles weakening and losing tone, is also correct. As we age, our bodies produce less muscle mass and a decrease in muscle strength. This can lead to a loss of balance and stability, making older adults more prone to falls and injuries. Finally, option D, weight gain in muscles, is not a normal age-related change for the musculoskeletal system. While it is true that muscle mass may decrease with age, it is usually replaced with fat, not weight gain in muscles.