CM6 - intestin grêle Flashcards

1
Q

Temps dans
estomac
intestin
colon

A

1-3h

2–8h

1-3j

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2
Q

comment trop de fibres = diarrhee

A

appel d’eau

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3
Q

bristol?

A

1-7
(3-5 normaux)

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4
Q

Combien de L sortent de l’estomac pour arriver au duodenum? et au colon?

A

10L
1.5L

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5
Q

Combien est absorbé au jejunum? ileon? colon?

A

6L
2.5L
1.4L

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6
Q

Combien de L dans selles?

A

0.1L

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7
Q

Expliquer diarrhée par le choléra

A

toxine du cholera entre dans cellule et active les canaux de CHLORE pour faire diarrhée secretoire
stimule NEURONES entériques et cellules ENTEROCHROMAFFINES pour augmenter le TRANSIT donc c’est aussi MOTEUR, et secrete le syst immunitaire qui fait plus que mucus

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8
Q

steatorrhée plus lié à un probleme de malabsorption que de maldigestion

A

FAUX
maldigestion est le probleme

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9
Q

comment ca diarrhee secretoire avec steatorrhee?

A

graisses elevées dans lumiere intestinale = motricité, inflammation, appel d’eau

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10
Q

V ou F: les acides gras causent une diarrhée osmotique par augmentation de la charge osmolaire

A

FAUX
changent pas la charge osmolaire c’est vrm un probleme d’irritation

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11
Q

Tumeurs neuroendocrines?

A

carcinoide, gastrinome, insulinome, VIPome

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12
Q

carcinoide: ou? quoi? sx?

A

ileon
serotonine/histamine/kinine/TGF-B
sx: diarrhée (MOTRICE), bronchospasme, flushing, fibrose

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13
Q

gastrinome?

A

pancréas duodenum
gastrine
ulcere diarrhée malabsorption

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14
Q

insulinome?

A

pancreas
insuline
hypogly

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15
Q

VIPome?

A

pancreas
VIP

diarrhée, achlorydrie, hypokaliemie

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16
Q

glucagonome?

A

pancreas
glucagon

diabete rash anemie

17
Q

somatosta

A

pancreas
steatorrhee lithiase vesiculaire diabete

18
Q

ACTH

A

surrenale pancreas
cushing

19
Q

GRFome

A

poumons pancreas

acromegalie

20
Q

Pourquoi carcinoide cause pellagre?

A

psk tryptophane fait ++ serotonine et moins de niacine

5HIAA dans urines

21
Q

infection subaigue la plus commune?

A

giardia