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Bila este necesara pentru digestia si absorbtia lipidelor si pentru excretia unor substante insolubile in apa cum ar fi colesterolul si bilirubina (Bilirubina este un pigment biliar, de culoare galbenă, derivat al pirolului, care se formează datorită degradării hemoglobinei.) Ea este secretata continuu si depozitata in vezica biliara si este eliberata in duoden in periadele digestive numai dupa ce chimul a declansa secretia de:
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Tripsina
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Chimotripsina
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Colecistikina
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Fosolipaza
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Colecystokinin (colecistikina) is necessary for the digestion and absorption of lipids, as well as for the excretion of substances insoluble in water, such as cholesterol and bilirubin. It is continuously secreted and stored in the gallbladder, and is released into the duodenum during digestion only after the chyme triggers its secretion.
