Organ function refers to the specific roles that different organs play in maintaining the body's overall health and efficiency. Each organ, such as the heart, lungs, and kidneys, has unique responsibilities. For example, the heart pumps blood throughout the body, delivering oxygen and nutrients, while the lungs facilitate the exchange of oxygen and carbon dioxide. Proper organ function is essential for homeostasis, which is the body's ability to maintain stable internal conditions. When organs do not function correctly, it can lead to various health issues. Regular check-ups and a healthy lifestyle can help support optimal organ function and prevent diseases.