Système urinaire Flashcards

1
Q

augmentation de la libération de la rénine du à

A

une baisse importante de la PA

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2
Q

libération de la rénine grâce aux

A

cellules juxtaglomérulaire

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3
Q

rénine transforme

A

angiotensinogène en angiotensine1

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4
Q

Enzyme de conversion de l’angiotensine transforme

A

angiotensine1 en angiotensine2

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5
Q

angiotensine2 permet

A

d’augmenter PA

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6
Q

Systm rénine-angiotensine-aldostérone permet

A

stabilisation de la pression artérielle et de la volémie

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7
Q

néphron

A

siège de la formation de l’urine

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8
Q

étape néphron

A
  • filtration glomérulaire
  • réabsorption tubulaire
  • sécrétion tubulaire
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9
Q

glomérule

A

filtre mécanique

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10
Q

filtration glomérulaire(processus)

A
  • filtration du plasma

- unidirectionnel, passif et peu sélectif

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11
Q

membrane de filtration composée

A
  • endothélium fenestré
  • membrane basale glomérulaire
  • podocyte(prolongement pédicelle)
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