Give a brief account of the counter current mechanism.
The counter modern-day mechanism working in the kidney is the primary version for the conservation of water. There are counter modern-day mechanisms withinside the kidneys. They are Henle's loop and vasa rectae. Henle's loop is a U-fashioned a part of the nephron. Blood flows withinside the limbs of the tube in contrary guidelines and this offers upward push to counter currents. The Vasa recta is an efferent arteriole, which bureaucracy a capillary community round the tubules in the renal medulla. It runs parallel to Henley's loop and is U-fashioned. Blood flows in contrary guidelines withinside the limbs of vasa recta. As a end result, blood getting into the renal medulla withinside the descending limb is available in closecontact with the outgoing blood withinside the ascending limb.The osmolarity will increase from three hundred mOsmolL -1 withinside the cortex to 1200 mOsmolL -1 withinside the internal medulla with the aid of using counter present day mechanism. It enables in keeping the attention gradient, which in flip enables in smooth motion of water from accumulating tubules. The gradient is a end result of the motion of NaCl and urea.
