Absorption nutriments Flashcards

(14 cards)

1
Q

Glucides

A

Jéjunum
Sous forme de monosaccharides (glucose, galactose, fructose)

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2
Q

Protéines

A

Jéjunum
Sous forme d’acides aminés et peptides courts

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3
Q

Lipides

A

Jéjunum (et un peu dans l’iléon)
Nécessitent sels biliaires pour l’émulsification

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4
Q

Eau

A

Jéjunum > iléon > côlon
Réabsorption majoritaire dans l’intestin grêle

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5
Q

Fer

A

Duodénum
Forme ferreux (Fe²) mieux absorbé ; vitamine C favorise l’absorption

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6
Q

Calcium

A

Duodénum et jéjunum
Absorption vitamine D dépendante

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7
Q

Magnésium

A

Iléon + côlon
Transport actif et passif

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8
Q

Folate (vitamine B9)

A

Jéjunum
Sensible à l’alcool et à certains médicaments

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9
Q

Vitamine B12 (cobalamine)

A

Iléon terminal
Nécessite facteur intrinsèque (produit dans l’estomac)

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10
Q

Vitamine C

A

Jéjunum
Transport actif ; favorise absorption du fer

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11
Q

Vitamines liposolubles (A, D, E, K)

A

Jéjunum + iléon
Nécessitent sels biliaires pour leur absorption

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12
Q

Bile (réabsorption)

A

Iléon terminal
Cycle entérohépatique

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13
Q

Sels biliaires

A

Iléon terminal
Réabsorption très efficace

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14
Q

Sodium, potassium, chlore

A

Intestin grêle + côlon
Par transport actif ou passif selon les besoins

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