what are the adaptations of the proximal convoluted tubule in the nephron
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Answer:
The proximal convoluted tubule (PCT) has a high capacity for reabsorption, hence it has specialised features to aid with this. It is lined with simple cuboidal epithelial cells which have a brush border to increase surface area on the apical side.
The proximal convoluted tubule (PCT) has a high capacity for reabsorption, hence it has specialised features to aid with this. It is lined with simple cuboidal epithelial cells which have a brush border to increase surface area on the apical side. The epithelial cells have large amounts of mitochondria present to support the processes involved in transporting ions and substances.
Moreover, they also have a large number of channels on both the apical and basolateral membrane which provides a large surface area for transport of ions and other substances to occur.
The proximal tubule can be divided into pars convolute and pars recta. The pars convolute resides in the renal cortex and it can further be divided into 2 segments; S1 (segment 1) and the proximal part of S2. The pars recta is a straight segment present in the outer medulla