MICROANATOMY

URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS

URINARY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Each kidney contains how many nephrons?
A
1 million
B
10 million
C
1 billion
D
10 billion
Explanation: 

Detailed explanation-1: -Abstract. Several studies have shown that total nephron (glomerular) number varies widely in normal human kidneys. Whereas the studies agree that average nephron number is approximately 900, 000 to 1 million per kidney, numbers for individual kidneys range from approximately 200, 000 to >2.5 million.

Detailed explanation-2: -Based on autopsy specimens from individuals representing various ethnic groups, a large variation in nephron number exists in the “normal” adult human kidney, such that each kidney contains anywhere from 200, 000 to over 1.8 million nephrons.

Detailed explanation-3: -So, the correct answer is ‘1.2 million’.

There is 1 question to complete.