Texas Medical Assistant Certification Practice Test

Does the nervous system slow down with aging?

1. Yes, affecting gastrointestinal speed

2. No, it speeds up peristalsis

3. Yes, but only in the limbs

4. No, it speeds up all functions

The correct answer is: Yes, affecting gastrointestinal speed

The correct response is that yes, the nervous system does slow down with aging, which can affect various bodily functions, including gastrointestinal speed. This slowdown is part of the natural aging process, as neural pathways can become less efficient, leading to delayed responses and slower reflexes. This phenomenon can particularly impact the gastrointestinal system, where the coordination between the nervous system and digestive processes may take longer, resulting in symptoms like constipation or slower digestion. In older adults, the reduction in nerve function can mean that signals to and from the gastrointestinal tract are not transmitted as quickly or efficiently as in younger individuals. Consequently, this can lead to a decrease in peristalsis (the waves of muscle contractions that move food through the digestive system), thus affecting the overall speed of gastrointestinal processes. While some aspects of the nervous system may maintain function or even adapt over time, the general trend is toward reduced efficiency, particularly in peripheral nerves and regional systems involved in functions like digestion. The other choices either suggest an incorrect perception of increased efficiency with aging or incorrectly limit the effects to specific areas such as limbs.