Which muscles are present in the wall of the urinary bladder?

The normal blood flowing through the renal arteries in a human being is about

The total number of minor calyces in a human kidney is equal to the number of:

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.

Human kidney has

How is the glomerulus formed?