Same thing in the distal convoluted tubule.

In the distal convoluted tubule, it was calcium, other things.

And then just finishing up at the distal convoluted tubule.

So if we're in the distal convoluted tubule, these kind of villi, these things that stick out this is only in the proximal convoluted tubule, those brush borders.

Let's start with the proximal tubule right here.

Distal axonopathy occurs most severely in the longest nerve in the horse.

See also Collecting duct carcinoma References External links Collecting Duct (Kidney) Urinary System kidney, medulla, collecting duct and ascending tubule Urinary System kidney, H E, collecting duct and ascending tubule

This is done to treat or prevent problems with distal circulation, or ventilation.

It affects the more poorly vascularized distal structures, such as the fingers and toes.

And then the border of the tubule is made up by a bunch of cells.

If you remember, in the proximal convoluted tubule, we talked about maybe glucose and amino acids and sodium being reabsorbed.

So the side of the cells that are facing the lumen, or kind of facing the inside of our tubule, this is called the apical side.

This is true regardless of what part of the nephron we're in, whether the proximal, whether the loop of Henle, or whether we're in the distal part.

So the inside, I'm going to draw it like this because the proximal tubule has these little things that stick out, sometimes referred to as a brush border.