What is one of the main functions of the liver?

The liver plays a crucial role in the detoxification of blood, making it one of its main functions. This organ is responsible for metabolizing various substances, including drugs and alcohol, converting them into less harmful compounds, and facilitating their removal from the body. The liver processes and filters blood coming from the digestive tract, allowing it to remove toxic substances and prevent them from entering the systemic circulation where they could cause harm.

In addition to detoxification, the liver also produces bile, which is essential for digestion and fat absorption, and synthesizes various proteins important for blood clotting and other functions. However, its role in detoxifying blood is particularly significant, as it helps maintain overall health by ensuring that potentially harmful substances are properly processed and eliminated.

The other options listed involve functions that are carried out by different organs or systems. Insulin production is primarily the role of the pancreas, while the storage of red blood cells occurs mainly in the spleen. Adrenaline is produced by the adrenal glands, not the liver.