Question

When the afferent arteriole is stimulated by sympathetic nerves:

Select one:

a. glomerular filtration rate increases

b. more proteins end up in the urine

c. MAP decreases

d. the afferent arteriole constricts

e. more than one answer is correct

Answer 1

Option a is wrong as it will only cause a reduction in the GFR as the constriction of the blood vessel will lead to reduce blood supply and also reduction in GFR. As sympathetic nervous system cause constriction of the afferent arterioles

Option b is wrong as constriction of the blood vessel will not lead to loss of protein from urine . It will only reduce blood supply to Kidney only

Option c is wrong as mean arterial pressure will remain high when constriction of blood vessel occur

Option d is correct When the sympathetic nervous system stimualate the reduction in GFR and results in the constriction of the afferent blood vessel so Option d is correct

Option e is wrong as only one answer is present