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Structure of the kidney of Bufo arenarum: Intermediate segment, distal tubule and collecting tubule Biocell
Farías,Alejandro; Hermida,Gladys Noemí; Fiorito,Luisa Eleonora.
The ultrastructure of the intermediate segment (IS), distal tubule and collecting tubule (CT) of the south american toad Bufo arenarum, was studied by light and transmission electron microscopy. The IS is composed of cubical ciliated cells which propel the urine along the renal tubule. The distal tubule is divided into two portions: the early distal tubule (EDT) and the late distal tubule (LDT). The EDT is characterized by only one type of cells with well developed basolateral interdigitations and numerous elongated mitochondria, which are oriented normal to the basal surface. The "macula densa - like" is a specialized zone of the EDT in contact with the vascular pole, where cells are more tightly packed than in the rest of the tubule. The LDT shows two...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amphibia; Kidney; Ultrastructure; Renal tubules.
Ano: 2003 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452003000100003
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