Term
| How does the RAS system start? |
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Definition
| The kidneys sense low fluid volume/pressure |
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Term
| What happens when the kidneys sense low fluid volume in the body? |
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Definition
| They release Renin into the bloodstream |
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Term
| What happens when Renin enters the blood stream? |
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Definition
| It moves through your blood stream eventually making it to the lungs |
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Term
| What blood component activates with Renin when it reaches the lungs? |
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Definition
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Term
| What is created when Renin and Angiotensin meet in the lungs? |
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Definition
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Term
| What happens to Angiotensin 1 in the lungs? |
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Definition
| Angiotensin Converting Enzymes (ACE) bind with Angiotensin 1, converting it to Angiotensin 2. |
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Term
| What4 things does Angiotensin 2 do when it is released? |
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Definition
Angiotensin 2 is a vasoconstrictor which will:
Raise blood pressure.
Raise thirst
Constrict blood flow to the nephrons
Signals the adrenal glands on the adrenal cortex. |
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Term
| What does the adrenal gland on the adrenal cortex do when signaled by Angiotensin 2? |
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Definition
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Term
| What affect does Aldosterone have on the body? |
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Definition
| Signals the body to retain water and sodium. |
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Term
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Definition
| Atrial Natriuretic Peptide Renin/Aldosterone system |
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Term
| What starts the ANP system? |
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Definition
| The atria cells stretch more in response to fluid overload. |
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Term
| What does the stretching of atrial heart cells trigger? |
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Definition
| The release of the ANP hormone into the bloodstream. |
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Term
| What does the ANP hormone signal to the kidneys? |
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Definition
| Signals to stop the secretion of Renin |
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Term
| What affect does the ANP hormone have on the aldosterone in the system? |
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Definition
| It blocks the effects of aldosterone, promiting fluid and sodium excretion from the body. |
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Term
| What gland is responsible for the thirst desire? |
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Definition
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Term
| Where does the ADH hormone come from on the body? |
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Definition
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Term
| What effect does the ADH hormone have on the body? |
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Definition
| Signals the kidneys to retain water |
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