NEET PG DENTAL EXAM

HISTOLOGY

URINARY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many kidneys does a person normally have?
A
one
B
two
C
three
D
four
Explanation: 

Detailed explanation-1: -You have two kidneys that filter your blood, removing wastes and extra water to make urine.

Detailed explanation-2: -There are three main reasons why a person may have only one kidney: A person may be born with only one kidney. This condition is called renal agenesis. Another condition, which is called kidney dysplasia, causes a person to be born with two kidneys, but only one of them works.

Detailed explanation-3: -Thus, we assume that the reason we have two kidneys is so that there is some extra reserve of kidney mass in case we sustain some renal insult (e.g. toxic injury, or traumatic injury). Having said that, about 1 in 1000 individuals are born with one kidney (unilateral renal agenesis).

Detailed explanation-4: -They help your bones stay healthy, tell your body when to make new blood cells, and even help you stay upright when you’re walking around all day by taking care of your blood pressure. With all those important functions, scientist think having two kidneys must be important for our survival.

There is 1 question to complete.