nau bio 202 exam 4 rometo Questions With Complete
Solutions
3 major processes that result in urine formation Correct
Answers - glomerular formation
- tubular reabsorption
- tubular secretion
according to the myogenic regulation of GFR, an increase in BP
= AAs stretch and an increase in GFR is countered by: Correct
Answers vasoconstriction of AA to bring GFR back down to
normal
Because of various endocrinological issues, your patient has
been struggling with his weight for years. Though he has
undergone countless lifestyle changes, including diet and
exercise, he cannot seem to loose enough weight to drop out of
the "morbidly obese" range. As such, he decided to undergo
bariatic (stomach bypass) surgery. In preparing him for surgery,
you inform him he will have to take oral forms of vit B12 to
prevent pernicious anemia.
Why is this? Correct Answers in order to absorb vit B12 in the
small intestine, intrinsic factor is needed. with stomach bypass
surgery, the stomach is "bypassed" so intrinsic factor secretion
from the parietal cells does not enter into the small intestine.
Thus, vit B12 can not be absorbed in the small intestine and
there would be a decrease in RBC production, thus causing
pernicious anemia.
extrinsic: hormonal Correct Answers - decrease in BP and
decrease in blood flow to kidneys
, - renin-angiotensin-aldosterone system
- salt deficit
- decrease blood vol
- decrease blood pressure
extrinsic: neural Correct Answers - sympathetic nervous
system
- very low BP
- shunt blood from kidney
- SNS releases epi and norepi
- vasoconstriction increases BP
- constriction AA= decreased GFR and increase blood vol and
BP
- negative feedback of pressure
glomerular filtration rate (GFR) (2 types) Correct Answers -
intrinsic
- myogenic
- tubuloglomerular feedback
- extrinsic
- neural
- hormonal
glucose is reabsorbed from the nephron lumen into the nephron
cell via: Correct Answers cotransport (symport) with sodium
importance of intrinsic factor and B12 in RBC formation?
Correct Answers - intrinsic factor is necessary for B12
absorption in small intestine
- vit B12 is needed for RBC
- without vit B12 = vit B12 deficiency = pernicious anemia
Solutions
3 major processes that result in urine formation Correct
Answers - glomerular formation
- tubular reabsorption
- tubular secretion
according to the myogenic regulation of GFR, an increase in BP
= AAs stretch and an increase in GFR is countered by: Correct
Answers vasoconstriction of AA to bring GFR back down to
normal
Because of various endocrinological issues, your patient has
been struggling with his weight for years. Though he has
undergone countless lifestyle changes, including diet and
exercise, he cannot seem to loose enough weight to drop out of
the "morbidly obese" range. As such, he decided to undergo
bariatic (stomach bypass) surgery. In preparing him for surgery,
you inform him he will have to take oral forms of vit B12 to
prevent pernicious anemia.
Why is this? Correct Answers in order to absorb vit B12 in the
small intestine, intrinsic factor is needed. with stomach bypass
surgery, the stomach is "bypassed" so intrinsic factor secretion
from the parietal cells does not enter into the small intestine.
Thus, vit B12 can not be absorbed in the small intestine and
there would be a decrease in RBC production, thus causing
pernicious anemia.
extrinsic: hormonal Correct Answers - decrease in BP and
decrease in blood flow to kidneys
, - renin-angiotensin-aldosterone system
- salt deficit
- decrease blood vol
- decrease blood pressure
extrinsic: neural Correct Answers - sympathetic nervous
system
- very low BP
- shunt blood from kidney
- SNS releases epi and norepi
- vasoconstriction increases BP
- constriction AA= decreased GFR and increase blood vol and
BP
- negative feedback of pressure
glomerular filtration rate (GFR) (2 types) Correct Answers -
intrinsic
- myogenic
- tubuloglomerular feedback
- extrinsic
- neural
- hormonal
glucose is reabsorbed from the nephron lumen into the nephron
cell via: Correct Answers cotransport (symport) with sodium
importance of intrinsic factor and B12 in RBC formation?
Correct Answers - intrinsic factor is necessary for B12
absorption in small intestine
- vit B12 is needed for RBC
- without vit B12 = vit B12 deficiency = pernicious anemia
