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Sistema urinario

QuestionAnswer
¿Por qué está compuesto el aparato urinario? 2 riñones, 2 uréteres, vejiga y uretra
Estructura general del riñón. Tamaño Cápsula, corteza, medula y tubulos membranosos. Largo 10cm, ancho 6.5cm, espesor 3cm
¿Qué conforma la cápsula? Tejido conjuntivo denso Capa interna- fibroblastos Capa externa- miofibroblastos
Tipo de colágeno en cápsula I y III
¿Qué conforma la corteza? Pirámides de ferrein. De 400-500
¿Qué conforma a la medula? Pirámides de Malpighi y columnas renales (de Bertín)
¿Cuántas pirámides de Malpighi? Y división 8-12. Base y vértice (papila)
División de la médula Interna y externa (franja interna y externa)
Cantidad de sangre distribuida Recibe 25% gasto cardíaco Distribuida en 90-95% corteza y 5-10% medula
Unidad estructural y funcional del riñón. ¿Cuántas hay? Nefrona. 2 millones
Qué conforma un lobulo.¿ Cuántos hay ? Pirámide de Malpighi y tejido cortical. 8-18
Organización de la nefrona
Created by: Mari04242
 

 



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