PN 1 Exam 3- Module Questions &
Correct Answers
When adults have more body fat do, they have more or less water? - Answer: the
more body fat, the less water
What is in transcellular fluid compartments? - Answer: Cerebral spinal fluid
Synovial fluid
Peritoneal fluid
Pleural fluid
What percentage of fluid is intracellular? - Answer: 70%
What percentage of fluid is extracellular? - Answer: 30%
Page 1 of 21
,What substances could cause a pull that is involved in osmotic pressures? -
Answer: solutes: Na, Glucose, proteins
What is osmosis? - Answer: The force that draws water from a less concentrated
solute through a selectively permeable membrane into a more concentrated
solute.
What is diffusion? - Answer: Particles or Solutes of liquids, gases, or solids move
from a area of higher concentration to lower concentration
What is hydrostatic pressure? - Answer: Pushing pressure of fluid in a closed
system
Think Blood Pressure
What are the kidneys role in maintaining fluid fluid balance? - Answer: Principle
site for regulation of fluid and electrolyte balance
Regulates hydrogen and bicarbonate
What is the role of adrenal gland in maintaining fluid balance? - Answer: Secrete
aldosterone which preserves sodium and water
What is the role of the hypothalamus in maintaining fluid balance? - Answer:
Produces antidiuretic hormone (ADH) (vasopressin)
Page 2 of 21
, What is role of the posterior pituitary gland in maintaining fluid balance? -
Answer: Secretes antidiuretic hormone, conserves water
What is the role of the heart in maintaining fluid balance? - Answer: Atrial
Natriuretic Peptide (ANP) and Brain Natriuretic Peptide (BNP)
-Atria and ventricle
respectively; muscles
stretched
-Causes excretion of sodium
and water
In the renin angiotensin aldosterone system (RAAS) what stimulates renin release
from the kidney? - Answer: Decreased renal perfusion, decreased blood pressure
and/or decreased sodium
In the renin angiotensin aldosterone system (RAAS) what does renin release
stimulate? - Answer: stimulates the liver to secrete Angiotensin I
In the renin angiotensin aldosterone system (RAAS) what does angiotensin 1
stimulate? - Answer: Angiotensin I converting enzymes (ACE) on lungs convert
angiotensin I to angiotensin II
In the renin angiotensin aldosterone system (RAAS) what does angiotensin II
stimulate? - Answer: Angiotensin II causes vasoconstriction to retain water and
increase BP and also stimulates the adrenal gland to secrete aldosterone
Page 3 of 21
Correct Answers
When adults have more body fat do, they have more or less water? - Answer: the
more body fat, the less water
What is in transcellular fluid compartments? - Answer: Cerebral spinal fluid
Synovial fluid
Peritoneal fluid
Pleural fluid
What percentage of fluid is intracellular? - Answer: 70%
What percentage of fluid is extracellular? - Answer: 30%
Page 1 of 21
,What substances could cause a pull that is involved in osmotic pressures? -
Answer: solutes: Na, Glucose, proteins
What is osmosis? - Answer: The force that draws water from a less concentrated
solute through a selectively permeable membrane into a more concentrated
solute.
What is diffusion? - Answer: Particles or Solutes of liquids, gases, or solids move
from a area of higher concentration to lower concentration
What is hydrostatic pressure? - Answer: Pushing pressure of fluid in a closed
system
Think Blood Pressure
What are the kidneys role in maintaining fluid fluid balance? - Answer: Principle
site for regulation of fluid and electrolyte balance
Regulates hydrogen and bicarbonate
What is the role of adrenal gland in maintaining fluid balance? - Answer: Secrete
aldosterone which preserves sodium and water
What is the role of the hypothalamus in maintaining fluid balance? - Answer:
Produces antidiuretic hormone (ADH) (vasopressin)
Page 2 of 21
, What is role of the posterior pituitary gland in maintaining fluid balance? -
Answer: Secretes antidiuretic hormone, conserves water
What is the role of the heart in maintaining fluid balance? - Answer: Atrial
Natriuretic Peptide (ANP) and Brain Natriuretic Peptide (BNP)
-Atria and ventricle
respectively; muscles
stretched
-Causes excretion of sodium
and water
In the renin angiotensin aldosterone system (RAAS) what stimulates renin release
from the kidney? - Answer: Decreased renal perfusion, decreased blood pressure
and/or decreased sodium
In the renin angiotensin aldosterone system (RAAS) what does renin release
stimulate? - Answer: stimulates the liver to secrete Angiotensin I
In the renin angiotensin aldosterone system (RAAS) what does angiotensin 1
stimulate? - Answer: Angiotensin I converting enzymes (ACE) on lungs convert
angiotensin I to angiotensin II
In the renin angiotensin aldosterone system (RAAS) what does angiotensin II
stimulate? - Answer: Angiotensin II causes vasoconstriction to retain water and
increase BP and also stimulates the adrenal gland to secrete aldosterone
Page 3 of 21
