Which type of nephrons have short loops of Henle that do not dip far beyond the cortex?

Correct option is A

Ans: (a) Cortical nephrons Sol. Cortical nephrons are the type of nephrons in the kidneys that have short loops of Henle, which do not extend deeply into the medulla of the kidney but remain confined mainly to the cortex. These nephrons are responsible for the majority of the kidney's filtration and are found in the outer portion of the kidney.
Explanation of each option:
· (a) Cortical nephrons: Correct answer. These nephrons have relatively short loops of Henle that are confined mainly to the cortex of the kidney.
· (b) Papillary nephrons: This is not a standard term used in nephrology, and it is not related to the function or structure of nephrons.
· (c) Medullary nephrons: This is incorrect as medullary nephrons are not a common classification. Juxtamedullary nephrons are those that have long loops of Henle that extend deep into the medulla.
· (d) Juxtamedullary nephrons: These nephrons have long loops of Henle that extend deep into the medulla of the kidney, which allows for greater concentration of urine, unlike cortical nephrons.