Question

Which structure is absent or highly reduced in cortical nephrons?

Answer 1

nephron is that cortical nephron contains a short loop of Henle which only extends into the outer region of the renal medulla whereas juxtamedullary nephroncontains a longer loop of Henle which extends deeper into the inner medulla.

Answer 2

Answer:

Vasa recta is the structure absent or highly reduced in cortical nephrons. The renal cortex contains cortical nephrons. They have short loop of Henle and no vasa recta. As a result, they are not involved in urine concentration.

Explanation:

What is a cortical nephron:

• The cortical nephron is a tiny structural and functional kidney unit with a small Henle loop that only reaches the outside renal medulla.
• These nephrons' Malpighian corpuscles are found in the outer region of the renal cortex.
• All vertebrates have cortical nephrons.
• Cortical nephrons make up about 85% of all nephrons in the human kidney.
• They are responsible for the majority of the human body's regulating and excretory processes.

What is vasa recta:

• The majority of the water, ions, amino acids, and glucose are reabsorbed through the vasa recta, a vascular network that runs around the loop of Henle.
• The vasa recta in the cortical nephrons is highly reduced as a result of the short Henle loop.