GENERAL HISTOLOGY

Detailed explanation-1: -The skin, lungs and liver of vertebrates are accessory excretory organs. Human skin possesses glands for secreting two fluids on it’s surface, namely sweat from the sweat glands and sebum from sebaceous glands.

Detailed explanation-2: -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.

Detailed explanation-3: -Another main function of the excretory system is to maintain homeostasis. To maintain homeostasis, the kidneys have the ability to sense changes in certain substances in the blood and can excrete them accordingly.

Detailed explanation-4: -The liver is a very important organ of excretion. The liver breaks down many substances in the blood, including toxins. The liver also excretes bilirubin-a waste product of hemoglobin catabolism-in bile. Bile then travels to the small intestine, and is eventually excreted in feces by the large intestine.