VUSN HEHI 5103 F & E Hormones Test (Questions & Answers) Rated 100% Correct!!
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VUSN HEHI 5103 F & E Hormones
Institution
VUSN HEHI 5103 F & E Hormones
Describe pathway of RAA system. - Kidney secretes renin in response to low blood volume →
renin travels to liver & triggers production of angiotensin I → angiotensin I travels to lungs & converts to
angiotensin II → angiotensin II travels to adrenal glands & stimulates production of aldoste...
VUSN HEHI 5103 F & E Hormones
Describe pathway of RAA system. - Kidney secretes renin in response to low blood volume →
renin travels to liver & triggers production of angiotensin I → angiotensin I travels to lungs & converts to
angiotensin II → angiotensin II travels to adrenal glands & stimulates production of aldosterone
What are the effects of aldosterone release on fluid & electrolyte balance? - - increases renal
retention of Na+
- increases renal excretion of K+
- increases water retention
- increases blood pressure
What is the "RAA System"? - Renin → Angiotensin → Aldosterone System
What triggers RAA system? - Sympathetic NS stimulation (fight or flight), low blood volume, low
blood pressure (hypotension)
What enzyme is responsible for converting angiotensin I to angiotensin II? - Angiotensin
Converting Enzyme (ACE)
What are two important functions of angiotensin II and what is the result? - Peripheral
vasoconstriction & stimulation of production of aldosterone → increase blood pressure
Where is aldosterone produced and where does it act? - Produced in adrenal cortex, acts on
kidney
Where is cortisol produced and where does it act? - Produced in adrenal cortex, acts on kidney
What are the effects of cortisol release on fluid & electrolyte balance? - - increases renal retention
of Na+
- increases blood pressure
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