question_answer

Complete the following paragraph by selecting the option that correctly fills the blanks (i) - (iv). The kidneys have built-in mechanisms for the regulation of glomerular filtration rate. One such efficient mechanism is carried out by (i). It is a special sensitive region formed by cellular modifications in the (ii) and the (iii) at the location of their contact. A fall in GFR can activate the JG cells to release (iv) which can stimulate the glomerular blood flow and thereby the GFR back to normal.

A)

(i)	(ii)	(iii)	(iv)
ANF	PCT	Efferent arteriole	Angiotensin

B)

(i)	(ii)	(iii)	(iv)
ANF	DCT	Afferent arteriole	Renin

C)

(i)	(ii)	(iii)	(iv)
JGA	PCT	Efferent arteriole	Angiotensinogen

D)

(i)	(ii)	(iii)	(iv)
JGA	DCT	Afferent arteriole	Renin