ANATOMY

Detailed explanation-1: -Kidneys help in the elimination of wastes from the body in the form of urine. Kidneys are the main organs of excretion in humans. Apart from kidneys, other organs like lungs, liver, skin and sebaceous glands also help in excretion.

Detailed explanation-2: -Excretion: the skin is a site through which we can excrete urea and other wastes via the sweat (the skin is not as important as the kidneys in terms of excretion)

Detailed explanation-3: -The most important routes for excretion are urine, feces, and exhaled air. Other minor routes of excretion include milk, sweat, saliva, tears, hair, and nails.

Detailed explanation-4: -Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. All of them excrete wastes, and together they make up the excretory system .

Detailed explanation-5: -The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver.