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Le Système Rénal

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Tub ule c o n to urn é<br />

pro xim a l<br />

An s e d e He n lé<br />

Tub ule c o n to urn é d is ta l<br />

Tub ule c o lle c te ur<br />

La réabsorption<br />

Na + Tra n s po rt a c tif<br />

Nutrim e n ts , K+<br />

HCO3 - Cl-<br />

Ea u<br />

Ac id e uriq ue<br />

Bra n c h e d e s c e n d a n te :<br />

Ea u<br />

Bra n c h e d e s c e n d a n te :<br />

Na +<br />

Cl- K+<br />

Ea u<br />

Na +<br />

Tra n s po rt a c tif<br />

s e c o n d a ire<br />

Tra n s po rt pa s s if<br />

(d iffus io n )<br />

Tra n s po rt pa s s if<br />

(d iffus io n o b lig a to ire )<br />

Tra n s po rt pa s s if<br />

(d iffus io n )<br />

Tra n s po rt pa s s if<br />

(o s m o s e )<br />

Tra n s po rt a c tif<br />

Tra n s po rt a c tif<br />

s e c o n d a ire<br />

Os m o s e , ré a b s o rptio n<br />

fa c ulta tive (ADH)<br />

Tra n s po rt a c tif<br />

(a ld o s té ro n e )<br />

Na + K+ Cl- Tra n s po rt a c tif<br />

Ea u<br />

Uré e<br />

Os m o s e , ré a b s o rptio n<br />

fa c ulta tive (ADH)<br />

Tra n s po rt pa s s if<br />

(d iffus io n )

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