Question

Each kidney consists _______ number of nephrons.

(a) thousands

(b) millions

(c) billions

(d) trillions

This question was addressed to me in an interview for job.

This interesting question is from Direct Writing Recorders in portion Recording System of Biomedical Instrumentation

Answer 1

Right answer is (b) millions

Explanation: Each kidney consists of millions number of nephrons.  A nephron is composed of two parts—a cluster of capillary loops called the glomerulus and a tubule. The tubule runs a tortuous course and ultimately drains via a collecting duct into the funnel-shaped expansion of the upper end of the ureter, i.e. the tube which conveys urine from the kidney to the bladder.