Summary
Sumario Excrecion animales
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- Institution
Esquema Excrecion animales
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-No nitrogenadosH2O, CO2, Sales minerales
Proceso que permite regular el
equilibrio químico entre el interior Productos -Nitrogenados
Definición Excreción de Animales
y el exterior y eliminar deshechos de excreción Amoniotelicos: excretan NH3 Peces óseos
metabólicos o sus toxinas Ureotelicos: NH3 urea Peces cartlag y
Mamíferos
Uricotélico: Ac úrico Insectos, Aves, Reptiles
Sin estructuras Con estructuras
especificas especificas
Por difusión
Protonefridios Metanefridios Glándulas Renales Tubos de Malpighi Riñones
Poríferos
Cnidarios Células flamígeras o Nefrostoma (forma (maxilares, antenales, -Tubos relacionados
con el tubo digestivo Formado por
solenocitos de embudo con glándulas verdes)
nefronas
cilios en sus bordes)
Abren al exterior por -Saco ciego -Los productos de
y en el otro extremo
un poro excretor -Tubo excretor deshecho se vierten
el poro abierto al Derivadas de
-Vejiga de almacenamiento al exterior con los
Platelmintos exterior. Anélidos y los
-Poro no digeridos
Moluscos Metanefridios
Crustáceos y Artrópodos Insectos
Nefrostoma
Nefrodioporo
Pronefros Mesonefros Metanefros
En embriones y Nefrostoma atrofiado Túbulo renal Desaparece el nefrostoma.
peces primitivos con la invaginación que rodea al Glomérulo dentro de la caps de
glomérulo. Filtración directamente Bowman. Los túbulos renales van a
de la sangre al túbulo renal túbulos colectores aparece el uréter
Peces y Anfibios Vejiga Cloaca
Mamíferos Aves y
Reptiles
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