Summary
BIO samenvatting H9 5VWO Nectar 4e editie 9.1-9.5
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Biologie samenvatting van hoofdstuk 9 van Nectar, 4e editie. 5VWO. Paragraaf 1 t/m 5.
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, Biologie H 99.1
open bloedsomloop bloed stroomt door hele lichaam
•
=
gesloten bloedsomloop : bloed komt niet buiten bloedvaten
bloed afgave en CO2 opname → wordt terug
→ enkele bloedsomloop 02 opnemen in → 02
-
_
:
gebracht
→ dubbele bloedsomloop :
•
Kleine bloedsomloop :
rechterKamer pompt 02 -
arm bloed naar longen →
CO2 -
afgaven en 02 -
OPname →
02 r k bloed naar linkerboezem
-
r k bloed via slagaders naar organen cellen diffunderen
grote bloedsomloop
:
02 -
→
→
•
02 -
arm bloed naar aders → rechterboezem
•
Aorta →
slagaders ( kransslagader voor '
t hart) →
opname 02 in organen
haarvaten → aders ( afw kend poortader :
,
kransader holle ader , )
onderdelen van het hart
•
boezem =
bloed uit aders ontvangen
Kamer = bloed richting slagaders persen
hartkleppen =
Kleppen tussen Kamer en boezem die bloed toelaten / afstaan
hartcyclus
fase 1 (diastole
•
=
vullen van de kamers .
:
kamers en boezems ontspannen)
fase
•
2 =
leegpersen van de kamers ( boezemsystole :
boezems trekken samen)
•
fase 3 =
persen van bloed van boezems naar kamers ( Kamersystole :
kamers trekken samen )
ijij ij
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