New York Nail Technician License Practice Test

What type of system is responsible for breathing?

1. Digestive system

2. Nervous system

3. Respiratory system

4. Circulatory system

The correct answer is: Respiratory system

The respiratory system is responsible for the process of breathing, which involves the inhalation of oxygen and the exhalation of carbon dioxide. This system includes key organs such as the lungs, trachea, and diaphragm, all of which work together to facilitate gas exchange. When air is inhaled through the nose or mouth, it travels down the trachea and into the lungs, where oxygen is absorbed into the bloodstream, and carbon dioxide is expelled. Effective functioning of the respiratory system is essential for maintaining the body's oxygen levels and removing waste gases, which is critical for overall health. In contrast, the digestive system is responsible for processing food and absorbing nutrients, while the nervous system controls bodily functions and responses. The circulatory system transports blood and nutrients throughout the body, including the oxygen acquired through the respiratory process. Each of these systems plays a distinct and vital role in maintaining homeostasis, but only the respiratory system is directly responsible for the act of breathing.