Physiology · Digestive System · Medium
Bilirubin
Meaning: Yellow pigment formed from the breakdown of haem in old red blood cells.
In practice: Raised levels cause jaundice; an isolated mild rise may be due to Gilbert syndrome.
Quick check
Two questions on related physiology words.
Which word means: Eicosanoid made by activated platelets that promotes clumping and vasoconstriction.
Answer: Thromboxane
Which word means: A biological catalyst that speeds up chemical reactions without being consumed.
Answer: Enzyme
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