circulation

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facons augmenter retour de sang dans veines

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28 Terms

1

facons augmenter retour de sang dans veines

  • excercises

  • gravite

  • inspiration

  • valvues

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2

exercises

muscles entoure veines =serre sang retourne a coeur quand contract

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3

gravite

etre debout/elever jambes → aide debit sang au coeur

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4

inspiration

diaphragme serre vais. sang. dans abdom. → force sang vers coeur

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5

valvues

augment retour sang en empeche sang de revenir en arriere

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6

coeur droite

pompe sang provenant diff. organes vers poumons

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7

coeur gauche

pompe sang oxyg. par poumons vers organes

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8

coeur

organe moteur du syst. circulatoire → forme de 2 pompes

  • coeur droite/gauche

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9

circulation pulmonaire

petit circ. = coeur dr → poumons → coeur g.

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10

circulation systemique

grande circ = coeur g. → organes → coeur dr

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11

direction arteres/arterioles

coeur → organes

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12

direction veines/veinules

organes → coeur

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13

capillaires

plus petit vais. sang. (~10cm) = reunis arterioles au veinules

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14

direction de circulation

arteres → arterioles → capillaires → veinules → veines

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15

oreillettes/ventricules

coeur forme de 4 cavites:

  • 2 oreilletes (g/dr), 2 ventricules (g/dr)

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16

oreillettes structure

mur mince

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17

ventricules structure

mur epais (gauche=plus epais)

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18

enveloppe de coeur

recouvert muscle card. par tissue fibreux resistant (int/ext)

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19

myocarde

muscle cardiaque

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20

envelope interieure

endocarde (couche mince)

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21

envelope exterieure

pericarde visceral/epicarde

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22

valvues card.

control flux sang entroreillette et ventricules

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23

valvules auriculo-ventriculaires

coeur dr = tricuspide, gauche = bicuspide/mitrale

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24

valvules pulmonaires/aortique

sigmoides droite/gauche

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25

Lub

sourd, ferm.

  • valv. auriculo-ventr → debut systole ventri.

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26

Dub

sec/bref

  • fermer valv. aortique/pulmon = fin systole ventri.

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27

faits de coeur

  • capacite: 70 fois/min = au repos

  • chasse 5L = meme temp

    • depend volume sang corp

  • contraction coeur

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28

contraction coeur

maniere intriseque, aucune stim nerv

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