Which organ is responsible for removing waste from the body?

The liver plays a crucial role in the body's waste removal processes. It is responsible for metabolizing nutrients and detoxifying substances, which includes breaking down harmful toxins and medications. The liver converts ammonia, a byproduct of protein metabolism, into urea, which can be safely excreted by the kidneys. Additionally, the liver produces bile, which aids in the digestion and removal of waste products from the digestive system.

In contrast, the stomach functions primarily in the digestion of food, breaking it down into a semi-liquid form for nutrient absorption. The pancreas produces enzymes and hormones that facilitate digestion and regulate blood sugar levels but is not directly involved in waste removal. The heart is primarily responsible for pumping blood throughout the body and does not have a role in waste elimination. Thus, the liver is the key organ that manages waste processing and removal from the body.