Question

what are medullary nephrons?​

Answer 1

Answer:

Juxtamedullary nephrons are found only in birds and mammals, and have a specific location: medullary refers to the renal medulla, while juxta (Latin: near) refers to the relative position of the renal corpuscle of this nephron - near the medulla, but still in the cortex.

Answer 2

Answer:

Juxtamedullary nephrons, unlike those farther away from the renal medulla, have long nephron loops than extend deep into the medulla.

They make the greatest contribution to the osmotic gradient of the medulla.

This gradient that enables the kidneys to conserve water and secrete hypertonic urine.

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Explanation: