Question

Each nephron loop has two limbs, a(n) ______ limb that extends from the cortex to the medulla and a(n) ______ limb that returns back into the renal cortex.

Answer 1

Each nephron loop has an ascending limb that extends from the cortex to the medulla and a descending limb that returns back into the renal cortex.

Step-by-step explanation:

Each nephron loop has two limbs, an ascending limb that extends from the cortex to the medulla and a descending limb that returns back into the renal cortex. In juxtamedullary nephrons, these limbs extend deep into the medulla, while in cortical nephrons, they do not extend beyond the cortex.