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Question
Counter current mechanism helps in ________ osmolarity towards the inner medulla.
Counter current mechanism helps in ________ osmolarity towards the inner medulla.
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Solution
The correct option is A increasing
The mechanism which facilitates production of concentrated urine is known as the countercurrent mechanism. The Henle’s loop and vasa recta play a significant role in this.
The flow of filtrate in the two limbs of Henle’s loop and the flow of blood through the two limbs of vasa recta is in counter current pattern. This countercurrent flow helps in an increasing osmolarity towards the inner medulla. The osmolarity gradient varies from 300mOsmol/L in the cortex to 1200mOsmol/L in the inner medulla. Presence of such a gradient helps in removing water from the collecting duct, thereby concentrating the urine.
The mechanism which facilitates production of concentrated urine is known as the countercurrent mechanism. The Henle’s loop and vasa recta play a significant role in this.
The flow of filtrate in the two limbs of Henle’s loop and the flow of blood through the two limbs of vasa recta is in counter current pattern. This countercurrent flow helps in an increasing osmolarity towards the inner medulla. The osmolarity gradient varies from 300mOsmol/L in the cortex to 1200mOsmol/L in the inner medulla. Presence of such a gradient helps in removing water from the collecting duct, thereby concentrating the urine.
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