The basic functional unit of human kidney is
Nephron
Pyramid
Nephridia
Henle's loop
Choose incorrect sentence.
$(I)$ Malpighian corpuscles, $PCT$ and $DCT$ the nephron are situated in medulla of the kidney
$(II)$ The loop of henle dips into medulla.
$(III)$ In juxta medullary 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.
How many nephrons are present in each kidney?
Definition / Explanation :
$(1)$ Calyces
$(2)$ Renal pyramids
It is not in pair.
Columns of Bertini'' in the kidney of mammals are formed as the extension of