Sistemul digestiv Flashcards

1
Q

Ce cantitate de saliva se secreta zilnic?

A

800-1500 ml

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2
Q

Cat dureaza timpul faringian?

A

1-2 secunde

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3
Q

Din ce este formata saliva?

A

99,5% apa, 0,5% reziduu uscat

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4
Q

Din ce este format reziduul uscat din saliva?

A

0,2% subst anorganice, 0,3% subst organice

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5
Q

Ce lungime are sfincterul cardia?

A

2-5 cm

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6
Q

Cat suc gastric se secreta pe zi?

A

aprox 2 l

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7
Q

Ce pH are sucul gastric?

A

intre 1 si 2,5 la adulti

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8
Q

Din ce e format sucul gastric?

A

90% apa, 10% reziduu uscat

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9
Q

Din ce e format reziduul uscat din sucul gastric?

A

0,6% subst anorganice, 0,4% subst organice

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10
Q

Care e pH-ul optim la care actioneaza pepsina?

A

1,8-3,5

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11
Q

Ce cantitate de HCl se secreta?

A

1-5 mEq/ora

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12
Q

Ce cantitate de proteine sunt digerate in stomac?

A

20-30%

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13
Q

De cate ori e segmentat chimul in intestinul subtire si prin ce tip de miscari?

A

de 8-12 ori/min, prin miscari segmentare (de amestec)

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14
Q

Cu ce viteza e transportat chimul prin intestin si prin ce tip de miscare?

A

0,5-2 cm/sec, prin miscari propulsive (peristaltice)

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15
Q

Cat ii ia chimului sa ajunga de la pilor la valva ileo-cecala?

A

3-5 ore

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16
Q

Ce cantitate de suc pancreatic se secreta zilnic?

A

1200-1500 ml

17
Q

Ce cantitate de bila se secreta zilnic?

A

250-1100 ml

18
Q

De ce cantitate de glucide avem nevoie?

A

250-800 g/zi

19
Q

Cat la suta din dieta trebuie sa fie glucidele?

20
Q

De ce cantitate de proteine avem nevoie?

A

0,5-0,7 g/kg corp-adult

21
Q

De ce cantitate de lipide avem nevoie?

A

25-160 g/zi

22
Q

Ce cantitate de chim exista?

23
Q

Ce cantitate de chim se elimina prin fecale?

24
Q

Cat dureaza cele mai numeroase miscari de propulsie de la nivelul I.G?

A

15 min, la o ora dupa micul dejun