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5345667
KRI IN KRVNI OBTOK
Description
kri in krvni obtok
No tags specified
kri
izločala
srce
žile
biology
8.
Mind Map by
taja.bozicko
, updated more than 1 year ago
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Created by
taja.bozicko
over 8 years ago
121
0
0
Resource summary
KRI IN KRVNI OBTOK
prenaša hranilne snovi
odnaša odpadke
odrasel človek:
do 5 litrov krvi
srce glavna črpalka
potiska kri po žilah
100000 udarcev na dan
Kri:
krvna plazma
krvna telesca
eritrociti
levkociti
trombociti
stene žil:
zunanje vezivne
mišično vezivne
nežne notranje sluznice
ŽILE:
arterije in odvodnice
močna mišična stena
elastične
kri pod pritiskom
žila: aorta
vene in dovodnice
tanke mišične stene
niso prožne
polmesečasti žepi-zaklopke
lasnice in kapilare
mikroskopske drobne žilice
stena-1 last celic
kapilarni prepleti
TELO:
dobri obrambni mehanizmi
koža ščiti nežna tkiva
v želodcu-močna kislina
IZLOČALA
naloge:
čiščenje,
filtriranje krvi
zgrajena:
iz dveh ledvic
prefiltrirajo 1750 l krvi na dan
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142f8c33-b154-4fae-92ed-0d0866b74e56 (image/jpg)
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