Wisconsin CNA State Exam Vocabulary Practice 2025 - Free CNA Vocabulary Practice Questions and Study Guide

The term that refers to the involuntary constriction and relaxation of the muscles of the intestine, creating wavelike movements, is peristalsis. This process is essential for the movement of food and waste through the digestive tract. Peristalsis occurs when smooth muscles in the walls of the intestines contract and relax in a coordinated manner, allowing for the progression of content along the gastrointestinal system. Understanding peristalsis is crucial for a CNA, as it relates directly to aiding patients with dietary needs and recognizing signs of digestive issues.

The other terms are related to different aspects of health and care but do not pertain to the muscular movements of the intestines. Peripheral vascular disease refers to a condition affecting blood vessels outside the heart and brain, personal care relates to assistance with daily living activities, and personal values refer to individual beliefs and principles that guide actions and decisions. These concepts, while important in the context of nursing and caregiving, do not describe the specific physiological action of peristalsis.