Die
Hauptaufgabe des
Harnsystems die
ist Bildung, Speicherung und
Ausscheidung von Harn.
Mitd em Harn werden neben Wasser und Elektrolyte nichtmehr
benötigte Abbauprodukte
des Stoffwechsels (v. a Harnstoffa u s dem Proteinstoffwechsel und kreatinin aus dem
Muskelstoffwechsel) und Fremdsubstanzen (z.B Medikamente oder
Umweltgifte) ausge
-
Milieu"
schieden. Nur durch das
regelmäige Entfernen dieser Stoffe kann
das innere
aufrechterhallen werden.
Das Harnsystem besteht
aus
Harnbildungs-
und ableitenden
orgenen aus
Harnwegen:
paarig angelegte Nieren (= Renes)
·
(= Pelvis renalis)
·
paarig angelegte Nierenbecken
paarig angelegte Harnleiter vreferen/
·
(=
·
Harnblase (=Vesica urinarina)
·Mariotre (=Uretural
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