Editing Excretory system (section)

==Substances==
=== Bile ===
{{Main|Bile}}
After bile is produced in the liver, it is stored in the gall bladder. It is then secreted within the small intestine where it helps to emulsify fats in the same manner as a soap. 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. For instance, if biliary drainage is impaired than that part of the liver will end up wasting away.

Biliary obstruction is typically due to masses blocking the ducts of the system such as tumors. The consequences of this depend on the site of blockage and how long it goes on for. There is inflammation of the ducts due to the irritation from the bile acids and this can cause infections. If rupture of the duct takes place it is very traumatic and even fatal.<ref>{{Cite book|title=Pathology of Domestic Animals|last=Jubb|first=K.V.F|publisher=Academic Press, Inc.|year=1993|isbn=978-0-12-391606-8|location=San Diego, California|pages=320–361}}</ref>

=== Urine ===
{{Main|Urine}}
Within the kidney, blood first passes through the afferent artery to the capillary formation called a [[Glomerulus (kidney)|glomerulus]] and is collected in the [[Bowman's capsule]], which filters the blood from its contents—primarily food and wastes. After the filtration process, the blood then returns to collect the food nutrients it needs, while the wastes pass into the collecting duct, to the renal pelvis, and to the ureter and are then secreted out of the body via the urinary bladder.{{citation needed|date=April 2024}}

===Faeces===
{{Main|Faeces}}
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===Sweat===
{{Main|Sweat}}
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===Breath===
{{Main|Breath}}
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