Question

These nephrons have loops of Henle that extend deep into the medulla of the kidney.

A) Cortical nephrons
B) Juxtamedullary nephrons
C) Medullary nephrons
D) Glomerular nephrons

Answer 1

The nephrons with loops of Henle that extend deep into the medulla are B) Juxtamedullary nephrons, which help in producing concentrated urine.

Step-by-step explanation:

The nephrons that have loops of Henle extending deep into the medulla of the kidney are B) Juxtamedullary nephrons. These nephrons are located adjacent to the border of the cortex and medulla, and their loops of Henle play a crucial role in enabling the kidneys to produce concentrated urine. The ability of juxtamedullary nephrons to regulate urine concentration is due to the long loop of Henle, which extends deep into the renal medulla, as opposed to the shorter ones found in cortical nephrons.