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Summary Lewenswetenskap opsommings vir vraestel een

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Hierdie opsommings bevat die volgende hoofstukke: Voortplanting in gewerweldes Menslike voortplanting Reaksie op die omgewing by mense Reaksie op die omgewing by plante Homeostase in die mens

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  • February 11, 2024
  • 76
  • 2022/2023
  • Summary

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By: nathanjacobs2006 • 1 month ago

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endokriene stelsel en homeostase



‘n endokriene klier vs 'n eksokriene klier

endokriene klier: dit is buislose kliere wat hul afskeidings (hormone) direk in die bloedstroom
stort. die bloed vervoer die hormone na die teikenorgane, waar hulle hul funksie verrig




eksokriene klier: kliere wat hul afskeidings in buise stort wat dit na ‘n ruimte in die liggaam of
na buite vervoer, bv. die speekselkliere wat speeksel in buise wat in die mondholte open, afskei

,hormoon: organiese chemiese boodskappers in die liggaam; hulle word deur die bloedstroom
vervoer en het elders in die liggaam ‘n uitwerking. (meeste is proteiene en sommige sterioede)




noodsaaklik om ‘n gesonde metabolisme te handhaaf

ligging van elk van die volgende kliere, deur 'n diagram te gebruik, die hormone wat hulle
sekreteer asook die funksie(s) van elke hormoon



1. hipotalamus en die pituïtêre klier (hipofise)

,ligging: hipotalamus is ‘n klein gedeelte van die brein wat bokant die breinstam geleë is. dit
vervaardig en skei hormone af en verbind die senuweestelsel met die endokriene stelsel. dit is
verbind aan die pituïtêre klier

funksie: die hipotalamus speel ‘n belangrike rol in die beheer van noodsaaklike funksies in die
menslike liggaam. in hierdie teks is die fokus op die anti-diuretiese hormoon (ADH) wat deur die
hipotalamus vervaardig word

, 2. byniere (adrenalien, aldosteroon)

 bo-op elke nier geleë bestaan uit ‘n sentrale gebied, die medulla, en ‘n buitenste korteks.
 vervaardig en skei twee hormone af: adrenalien en aldosteroon

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