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Summary Endokriene stelsel en negatiewe terugvoer lewenswetenskappe gr12

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2021/2022 Written for academic year
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endokriene stelsel en negatiewe terugvoer

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Endokrienestelsel
+ negatiewe
terugvoer

, TSH KONTROLEER die aktiwiteit van die
TIROÏED en die hoeveelheid TIROKSIEN
Verband
geproduseer en wat in die bloed voorkom.
tussen
hipofise
(TSH) en
tiroïed
(tiroksien)




2

, Tiroksienvlakke in die bloed is
te laag
▫ Chemoreseptore in die bloedvate tel dit as ‘n stimuli op
▫ Die hipofi se sekreteer meer TSH
▫ Stimuleer die aktiwiteit in die tiroïedklier
▫ En meer tiroksien word geproduseer
▫ In die bloed gestort en tiroksienvlakke verhoog todat dit
normaal is
▫ Negatiewe terugvoer het plaasgevind



3

, Tiroksienvlakke in die bloed is
te Hoog
▫ Chemoreseptore in die bloedvate tel dit as ‘n stimuli op
▫ Die hipofi se sekreteer minder TSH
▫ Inhibeer die aktiwiteit in die tiroïedklier
▫ En minder tiroksien word geproduseer
▫ In die bloed gestort en tiroksienvlakke verlaag todat dit
normaal is
▫ Negatiewe terugvoer het plaasgevind



4

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Uploaded on
September 17, 2021
File latest updated on
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Number of pages
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Written in
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Type
Summary
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Browse related subjects

Subjects

  • biologie
  • opsomming
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