The origin of the kidney and ureter in $Rana$ $tigrina$ is:

Draw a neat and labelled diagram of an excretory unit (nephron).

The structural and functional unit of the human kidney is:

In the given diagram,choose the correct option for the labelled parts $:-$

What will happen if one kidney of a person is removed?

Choose the incorrect sentence$(s)$.
$(I)$ Malpighian corpuscles,$PCT$ and $DCT$ of the nephron are situated in the medulla of the kidney.
$(II)$ The loop of Henle dips into the medulla.
$(III)$ In juxtamedullary nephrons,the loop of Henle is too short and extends very little into the medulla.
$(IV)$ Vasa recta is absent or highly reduced in cortical nephrons.