Question

In Mammalian kidney,iHenle'siloop is present in
A. Cortex
B. Caput epididymis
C. Medulla
D. Ureter

Answer 1

Hint: It is also considered as the inner zone of the kidney. It divides into a few conical masses projecting into the calyces. It is a long U-shaped portion of the tubule that conducts urine within each nephron of the kidney of reptiles, birds, and mammals.

Complete answer:
The renal tubule starts with a double-wall cup-like shape structure called Bowman's capsule, which encloses the glomerulus. The glomerulus with Bowman's capsule is called the Malpighian body or renal corpuscle. The tubule continues to form a tightly coiled network of the proximal convoluted tubule (PCT).

A Henle hairpin loop is the next part of the tubule, which has a descending branch and an ascending branch. The distal alveolar tubule (DCT) continues as a highly coiled ascending limb.

Additional information: The transport of ions along the nephron is essential for the reabsorption of sodium and water, the maintenance of plasma volume and blood pressure, and urine production. Henle's loop contributes to the absorption of about 25% of the filtered sodium and can be managed by diuretic therapy. . The Henle loop plays an important role in urinary concentration, which by contributing to the generation of hypertonic medullary interstitium in a process called countercurrent multiplication, it also aids in the reabsorption of calcium ions and magnesium ions.
So, the correct option is ‘Medulla’.

Note: The loop of the Henle descends from the cortex or spinal cord, which depends on the length of the henle at the renal papilla. The loop of Henle contains three main segments: descending thin member, ascending thin member, and ascending thick member. About $15\% - 25\%$ of the filtered NaCl is reabsorbed through the LoH, mainly through the thick ascendant.