Adult-Gerontology Clinical Nurse Specialist (CNS) Practice Exam

A decrease in temperature sensitivity with age occurs in which body system?

1. Reproductive system

2. Muscular system

3. Lymphatic system

4. Nervous system

The correct answer is: Nervous system

The correct answer pertains to the nervous system, which plays a crucial role in temperature sensitivity. As individuals age, there is a natural decline in the function of the nervous system, particularly in the peripheral sensory neurons. This decline leads to alterations in the ability to perceive temperature changes. In older adults, there may be a decrease in the number and sensitivity of nerve endings in the skin, resulting in diminished ability to detect temperature variations. This can affect both the sensation of cold and heat, increasing the risk for temperature-related injuries, such as burns or frostbite, due to unawareness of extreme temperatures. While changes in other systems mentioned can occur with aging, they do not primarily impact temperature sensitivity. The reproductive system often demonstrates different aging-related changes that do not involve sensory perception. The muscular system may experience strength changes, but not specifically temperature sensitivity. The lymphatic system is involved in immune function and fluid balance, similarly lacking a direct connection to temperature sensitivity changes.