Part of the kidney through which the ureter, blood vessels and nerves enter is

The Malpighian body (renal corpuscle) is equal to $.......$

Match the following columns:

Column-$I$	Column-$II$
$P$. Structures in renal cortex	$I$. Descending limb of Henle
$Q$. Structures in renal medulla	$II$. Proximal convoluted tubule $(PCT)$
	$III$. Distal convoluted tubule $(DCT)$
	$IV$. Ascending limb of Henle
	$V$. Collecting duct
	$VI$. Duct of Bellini
	$VII$. Afferent arteriole
	$VIII$. Efferent arteriole

Read the following four statements $(A-D)$ and select the correct ones:
$(A)$ The medulla of the kidney is divided into a few conical masses projecting into the calyces.
$(B)$ The cortex of the kidney extends in between the medullary pyramids as renal columns called columns of Bertini.
$(C)$ The kidneys are situated in the ventral part of the thoracic region in the human body.
$(D)$ Each kidney of an adult human measures $10-12 \ cm$ in length,$5-7 \ cm$ in width,$2-3 \ cm$ in thickness,with an average weight of $120-170 \ gm$.

Select the correct sequence of blood flow in the kidney.

Reabsorption of $Na^+$ and $K^+$ ions does not occur in which of the following?