Which organ system is primarily responsible for the elimination of waste from the body?

The excretory system is primarily responsible for the elimination of waste from the body. This system includes key organs such as the kidneys, ureters, bladder, and urethra, which work together to filter blood, remove waste products, and maintain a balance of fluids and electrolytes. By excreting waste through urine, the excretory system plays a crucial role in regulating the body's internal environment and preventing the buildup of harmful substances.

In contrast, the respiratory system is focused on the exchange of gases, specifically oxygen and carbon dioxide, rather than the elimination of solid or liquid waste. The circulatory system, which is involved in transporting nutrients, gases, and waste products throughout the body via the blood, does not have a specific function for waste elimination either. Lastly, the nervous system is responsible for transmitting signals throughout the body, controlling actions and reactions, but is not involved in waste removal processes.