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Biology-Related Homework Help Anatomy and Physiology Topic started by: mom2830 on Mar 7, 2012



Title: C-Thinking
Post by: mom2830 on Mar 7, 2012
Hi everyone!!!!

I need help!!!!

1. If the proximal tubule were unable to transport sodium ions into blood, why would you expect to find high concentrations of sodium and chloride in the urine?



2.Describe the mechanism of urine formation, identifying the nephron location where each step occurs.



3. Speculate why the juxtaglomerular (JG) apparatus is associated with the distal tubule and the afferent arteriole?



4. What would happen to the glomerular filtration rate (GFR) if a person suffered from severe malnutrition?



5. What would happen to the GFR if the blood pressure decreased?



6. Describe counter current flow and how it is used in urine production.

All suggestions are welcomed and greatly appreciated.

Melisa


Title: Re: C-Thinking
Post by: ppk on Mar 7, 2012
6. Describe counter current flow and how it is used in urine production.

The countercurrent flow within the descending and ascending limb of the nephrons in a person's kidney's increases, or multiplies the osmotic gradient between tubular fluid and interstitial space.


Title: Re: C-Thinking
Post by: mom2830 on Mar 8, 2012
Thank you PPK!!!! this well help me a lot.

Melisa


Title: Re: C-Thinking
Post by: duddy on Jul 31, 2012
Thank you PPK!!!! this well help me a lot.

Melisa

@mom2830: Could you please post the answers to the rest of the questions?

Thanks