ANATOMY AND
PHYSIOLOGY II WITH LAB:
CHAMBERLAIN COLLEGE
OF NURSING
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
Whats the deal with the large intestine - ANSWERS-It deals with the last 1L of the
10L of stuff already absorbed. Contain enteric bacteria to digest soluble fibers and
the rest of the missed nutrients. Main deal is propulsion of fecal material to your
bumhole.
QUESTION 2
In terms of the digestive system, why not just filter out the bad instead of filtering
everything? - ANSWERS-Capillaries are very simple, only for diffusion, don't
wanna give them another role.
QUESTION 3
3 roles of the urinary tract - ANSWERS-1) Filtration - glomerulus filters
everything and creates a filtrate (filter 180 L a day while only peeing around 1L)
END OF
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, BIOS252 MIDTERM EXAM 2024
ANATOMY AND
PHYSIOLOGY II WITH LAB:
CHAMBERLAIN COLLEGE
OF NURSING
2) Reabsorption - removes useful solutes from tubules into capillaries
3) Secretion - actively throwing out excess good stuff back into tubules to pee out.
QUESTION 4
What is the deal with blood pressure and the glomerulus? - ANSWERS-Blood
pressure is the driving force.
The glomerulus has really high blood pressure, higher than any other capillary
network.
QUESTION 5
What are the 3 reasons we get so much filtration in our urinary system? -
ANSWERS-High BP in glomerulus
Filtration membrane is highly permeable
2 million nephrons so huge SA
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PAGE 2
, BIOS252 MIDTERM EXAM 2024
ANATOMY AND
PHYSIOLOGY II WITH LAB:
CHAMBERLAIN COLLEGE
OF NURSING
QUESTION 6
What is the functional unit of the urinary system - ANSWERS-nephron
QUESTION 7
what is GFR - ANSWERS-Glomerular filtration rate
180L/Day (Rest of capillary beds is only 4L/day)
QUESTION 8
Regulation of GFR - ANSWERS-Regulated by adjusting blood flow via the
nervous and endocrine system.
QUESTION 9
Goblet Cell - ANSWERS-mucus cells of small intestine
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PAGE 3
, BIOS252 MIDTERM EXAM 2024
ANATOMY AND
PHYSIOLOGY II WITH LAB:
CHAMBERLAIN COLLEGE
OF NURSING
QUESTION 10
How do the afferent arterioles "sense" a change in BP - ANSWERS-Myogenic are
stretch receptors in afferent arterioles.
These act locally, unlike barroreceptors.
Talk about changing BP in glomerulus and stuff - ANSWERS-
QUESTION 11
Extrinsic Regulation of glomerular blood pressure - ANSWERS-When the
systemic BP drops too low, the endocrine system kicks in, sympathetic with help
of adrenal medulla (Noepin/Epin) to constrict afferent arterioles so filtration is
inhibited.
QUESTION 12
How do PCT's behave like enterocytes - ANSWERS-nutrients are absorbed via
cotransport which is secondary active transport because energy is needed maintain
the gradient.
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