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Counter current machanism helps in conce...

Counter current machanism helps in concentrating urine in animals and mainly operaters on
`{:(a.,"Henle's loop",b.,"Vasa-react"),(c.,"PCT",d.,"DCT"):}`

A

a only

B

b only

C

a and b

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
C
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Describe how the loop of Henle helps in concentrating the urine in terrestrial mammals.

counter current mechanism between loop of Henle and Vasa recta result in reabsorption of water from

 Which factor helps in maintaining an increasing osmolality towards the inner medullary interstitium?  a. Counter current pattern in vasa recta b. Counter current pattern in Henle’s loop c.proximity between the Henle’s loop and vase recta

 Which factor helps in maintaining an increasing osmolality towards the inner medullary interstitium?  a. Counter current pattern in vasa recta b. Counter current pattern in Henle’s loop c.proximity between the Henle’s loop and vase recta

Assertion: The Henle's loop and vasa recta play a significant role in producing a concentrated urine. Reason: The counter current arrangement of Henle's loop and vasa recta helps in this.

Assertion :- Mammals have the ability to produce a concentrated urine. Reason :- Counter current mechanism occurs in vasa recta and Henle's loop.

Assertion : Normal urine of man is hypertonic than the blood plasma. Reason : Counter-current mechanism of loop of Henle and Renin enzyme of juxta-glomerular cells increase the Na^(+) concentration in the adrenal medulla.

Assertion :- Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed. Reason :- Counter current mechanism helps to maintain a concentration gradient in the medullary interstitium.

Fill in the blanks: 1. In counter current mechanism, NaCl is transported by the ...a... limb of Henle’s loop which is exchanged with the .....b. limb of vasa recta. 2. NaCI is returned to the interstitium by ascending portion of .....c.. 3. Small amount of Urea enter the ......d segment of ...a... limb of Henle’s loop which is transported back to the interstitium by the ...e... .

AAKASH INSTITUTE-EXCRETORY PRODUCTS AND THEIR ELIMINATION-EXERCISE
  1. Hypersomlarity of interstitial fluid in renal medulla is maintained by...

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  2. How much amount of blood passes through the kidneys per minute in a he...

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  3. Chemically glomerular filtrate is similar to blood plasma, except

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  4. A fall in GFR can activate the JG cells to release "" which can stimul...

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  5. Substances like glucose, amino acid NA^(+) etc. in the filtrate are re...

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  6. Osmotic concentration of flomerular filtrate is the highest at the bot...

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  7. Which part of nephron is impermeable of H(2)O but allows transport of ...

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  8. Counter current machanism helps in concentrating urine in animals and ...

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  9. Diuretic substances like tea, coffee, alcohol etc. increases urine upt...

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  10. Mark the inappropriate term w.r.t. the glomerular filtration

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  11. Dialysis fluid contains all the constituents as in plasma except

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  12. Reabsorption of water from distal parts of the tubules is facilitated ...

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  13. Mark the incorrect statement:

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  14. Which of the following organs, other than kidneys, also help in the el...

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  15. Find out the incorrectyly matching pair w.r.t. the accessory excretory...

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  16. Presence of glucose (glycosuria) and ketone bodies (ketonuria) in urin...

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  17. In case of dehydration, secretion of all harmones increases expect one...

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  18. Which of the following is a powerful vasoconstrctor that increases the...

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  19. Which part of brain sends valuntary motor signals to smooth muscles of...

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  20. Which of the following is not metabolised in human body and therefore,...

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