excretor Flashcards

1
Q

calice mari/rinichi

A

3

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2
Q

nefroni totali=nr glomeruli=arteriole eferente si aferente

A

2 milioane

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3
Q

procent
nefroni corticali

A

85%

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4
Q

procent nefroni juxtamedulari

A

15%

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5
Q

nefroni corticali

A

1.700.000

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6
Q

nefroni juxtamedulari

A

300 000

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7
Q

debit sangvin renal

A

1 200 ml/min= 420 ml/100g tesut/min= 20% din debitul cardiac de repaus

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8
Q

debit filtrare glomerurala (urina primara)

A

125 ml/min = 180 l/zi (10% din debitul sangvin renal)

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9
Q

cantitate reabsorbita din urina finala

A

peste 99%

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10
Q

urina finala

A

1,8 l/zi

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11
Q

presiune capilare glomerulare

A

60 mmhg

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12
Q

presiune capsula bowman

A

18 mmhg

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13
Q

presiune coloid osmotica din capilare

A

32 mmhg

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14
Q

presiune coloid osmotica din capsula bowman

A

0 mmhg

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15
Q

reabsorbtie obligatorie apa

A

80% (in tubul contort proximal)

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16
Q

reabsorbtie facultativa apa

A

15% (mai ales tubi colectori dar si tubi contorti distali)

17
Q

reabsortie in restul nefronului

A

4% (ansa henle)

18
Q

cantitate urina daca presiune 5 10 cm apa in rinichi

A

30-50 ml

19
Q

det cresterea presiunii cu numai cativa cm h2o

A

200-300 ml

20
Q

declansare reflex mictiune

A

300-400 ml

21
Q

% apa din urina

A

95%

22
Q

nr de leucocite din urina

A

mai putin de 5000/ml

23
Q

nr calice mici= nr piramide malpighi

A

peste 6/rinichi

24
Q

na urina

A

3,3g/zi

25
Q

k urina

A

2-3,9g/zi

26
Q

ca urina

A

0,2g/zi

27
Q

mg urina

A

150mg/zi

28
Q

hco3 urina

A

0,3g/zi

29
Q

cl urina

A

5,3g/zi

30
Q

fosfor urina

A

1-1,5g/zi

31
Q

uree urina

A

25g/zi

32
Q

acid uric urina

A

0,6-0,8g/zi

33
Q

creatinina urina

A

1-2g/zi

34
Q

apa urina

A

1,3-1,8l/zi

35
Q

greutate rinichi

A

142 g per rinichi, 285 g total

36
Q

debitul filtrarii glomerulare/ora

A

7,5l