Question
Biology Question on Nephrons
Choose the correct statement given below regarding juxta medullary nephron.
Juxta medullary nephrons are located in the columns of Bertini.
Renal corpuscle of juxta medullary nephron lies in the outer portion of the renal medulla.
Loop of Henle of juxta medullary nephron runs deep into medulla.
Juxta medullary nephrons outnumber the cortical nephrons.
Loop of Henle of juxta medullary nephron runs deep into medulla.
Solution
- Juxta medullary nephrons have the renal corpuscle located at the boundary between the cortex and medulla, not exclusively in the outer cortex.
- The defining feature of juxta medullary nephrons is that their Loop of Henle extends deep into the renal medulla, which helps in the concentration of urine.
- There are fewer juxta medullary nephrons compared to cortical nephrons, so option (3) is incorrect.
Thus, the correct answer is Option 2.