Explain the principles behind how different diuretics

 Explain the principles behind how different diuretics work to excrete
excess water from the body.
o Video Resources : While you don’t need to understand diuretics in
depth for this course, looking at how each diuretic impacts the
different part of the kidney will help you check your understanding on
how the kidney functions. See these video resources:
 How Diuretics work: USMLE Kaplan Medical: Diuretics:
 Pharmacology – Diuretics: by Armando Hasudungan:


7.3.3 - Hormonal Regulation of Urine Production
 Explain the hormonal regulation of urine formation .
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BIO 265
o Describe each of the three regulatory pathways the kidneys use to
reabsorb more water and decrease excretion:

Where are
sensors
located?

What
activates
this
pathway?

Which
hormones
are
released
from
where?

What part
of the
kidney is
acted on
by these
hormones?

What is the
effect on
water? Is it
excreted or
reabsorbed
?

What is the
overall
effect to
the body
or blood
pressure?
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BIO 265
pressure
increases
 Renin-Angiotensin-Aldosterone System
o Study Tip : Create your own diagram or presentation of the RAAS
system. Find a friend and teach them what you have learned!
o What does increasing aldosterone do? Decreases extracellular K+
o What happens if a person has hyperkalemia (High K+)?
There will be an increases release of aldosterone ?
o Video Resources:
 Sodium Regulation: Renin-Angiotensin-Aldosterone System:
 Renin Angiotensin Aldosterone System from Mechanisms in
Medicine:
 Aldosterone compared to ADH by Khan Academy:
 Hyperkalemia:
 Hypokalemia:

Take BIO 265 Quiz 7.3
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