Question

If a gland is the combination of tissues that excretes something, then why is the liver considered as an organ, even though it excretes bile?

Answer 1

Bile also contains bilirubin, which is a waste product. Bile salts can be considered waste that is useful for the body given that they have a role in fat absorption from the stomach. They are excreted from the liver and along with blood flow they help to form the shape of the liver where they are excreted.

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