Wisconsin CNA State Exam Vocabulary Practice

What does atrophy refer to?

1. The absence of breathing

2. The wasting away, decreasing in size of muscles from lack of use

3. Vessels that carry blood away from the heart

4. A general term that refers to inflammation of the joints

The correct answer is: The wasting away, decreasing in size of muscles from lack of use

Atrophy refers specifically to the wasting away or decrease in size of muscles, which occurs primarily due to lack of use. When muscles are not exercised or engaged regularly, they can lose mass and strength, leading to weakness over time. This is commonly seen in individuals who are immobile for long periods, such as those recovering from surgery, bedridden patients, or individuals with certain health conditions that limit physical activity. Understanding atrophy is crucial for CNAs as they care for residents, particularly in encouraging mobility and physical therapy to prevent muscle deterioration. The other choices discuss different concepts: the absence of breathing is related to a medical emergency typically referred to as apnea; vessels that carry blood away from the heart are known as arteries; and inflammation of the joints is termed arthritis, which is a completely distinct health issue. Each of these terms describes different physiological conditions or structures, highlighting the importance of precise vocabulary in healthcare.