The loop of Henle is located in the $.......$.

In the renal tubule,the reabsorption of chloride ions from the glomerular filtrate occurs by:

Select the $CORRECT$ statements:
$i$. Tubular secretion involves secretion of $H^{+}$ ions in $PCT$.
$ii$. Augmentation involves secretion of $H^{+}$ ions in $DCT$ and $CT$.
$iii$. Augmentation plays an important role in regulation of $pH$ of blood.
$iv$. Glomerular filtrate as well as urine are acidic.

Removal of the proximal convoluted tubule from the nephron will result in:

The collecting tubules lead into ducts called

The descending limb of the loop of Henle is ..........