Q. A person passes much urine and drinks much water but his blood glucose level is normal. This condition may be the result of
A) A reduction in insulin secretion from pancreas
B) A reduction in vasopressin secretion from posterior pituitary
C) A fall in the glucose concentration in urine
D) An increase in secretion of glucagon
Explanation
As the basic function of vasopressin (a hormone secreted from neurohypophysis) is to conserve body’s water. Its failure or hyposecretion leads to a reduction in renal absorption of water and a consequent elimination of a large volume of dilute (hypotonic) urine, $i.e.,$ diabetes insipidus.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.