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Na+/K+ Regulation
Influences on....
Question | Answer |
---|---|
How would an Increase in GFR affect Filtration Rate? | LESS Ion REABSORPTION opportunity |
How would less Ion reabsorption opportunity affect Filtration Rate? | INCREASE Ion LOSS (excretion) |
How would Decrease in GFR affect Filtration Rate? | MORE Ion REABSORPTION |
How would more Ion reabsorption opportunity affect Filtration Rate? | LESS Ion excretion = Conserve |
What are the 2 influences on Tubular Reabsorption? | ANP, Aldosterone |
Where is ANP secreted from? | Heart |
What does ANP respond to? | HIGH Na+ |
What is the function of ANP? | DECREASES active Na+ REABSORPTION --> INCREASE Na+ EXCRETION |
Where is Aldosterone secreted from? | Adrenal CORTEX |
What are the function of Aldosterone on Tubular Reabsorption? | ^ Na+ REABSORPTION --> DECREASE Na+ EXCRETION & ^ K+ SECRETION --> ^ K+ EXCRETION |