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Biology 347 - General Physiology Lab - Stark and Kumar - Fall 2004
Final - 12/2/04 (each question is 1 point unless specified) 50 points total
1. Alcohol inhibits what hormone from the posterior pituitary?
2. Protanopia is red-blindness. Deuteranopia is green-blindness. What is
the term for blue-blindness such as we demonstrated for small foveal visual
3. Where are the baroreceptors that sense blood pressure located?
In the carotid sinus, aortic arch, and other large arteries of the neck
4. What is the function of the smooth muscle of the bronchioles?
To allow airflow regulation by altering the diameter of the bronchioles.
5. How would you determine if your patient has a left or right axis deviation?
Do calculations and plotting based on QRS above and below baseline for Lead
I and Lead III
6. Give a typical value for the specific gravity of urine.
1.01 (give or take)
7. What do we call the reaction in which water contributes to the splitting
of glycogen into glucose molecules?
8. After holding your breath for a minute, what would happen to the pH of
the cerebrospinal fluid bathing the respiratory centers of the medulla?
9. Why did the kidney lab web site state that " pH by itself is not
diet can affect pH
10. For a typical subject, why do you initially inflate the cuff to 180
That would be above systolic but not way too high
11. What is the official term for the lung volume we determined when we
used the spirometer to see who had the greatest number (about 6 liters)?
12. How is glucose transported on the luminal membrane of the proximal convoluted
via a sodium/glucose cotransporter
13. What is the mechanism by which ADH facilitates water resorption?
more aquaporin water transporters channels are deployed
14. What part of the nervous system mediates the bradycardia of the diving
15. If you are careful about how you breathe, you should be able to measure
each component of lung volumes with our simple spirometer except one. Which
16. What is the official word for the cuff you use to measure blood pressure
from the brachial artery?
17. What do the cardiac glycosides digitalis and ouabain do?
block the sodium pump
18. Why would a lung collapse from a puncture wound between the ribs?
intrapleural space has same pressure as atmospheric
19. What is hypernatremia?
high sodium (relative to plasma)
20. What would happen to heart rate if all parasympathetic and sympathetic
inputs to the heart were instantly abolished while you were relaxed?
heart would speed up
21. Blue-absorbing macular pigments are thought to protect the foveal cones.
What are these chemicals?
carotenoids (lutein and zeaxanthin)
22. When you hear the last sound while measuring blood pressure, what is
the approximate pressure within the ventricle?
At the moment arterial diastolic pressure is registered, ventricular and
arterial pressures should be the same
23. What hormone does renin activate?
24. Why are pulse and blood pressure close to control levels during a dive
with a face mask and a snorkel?
face mask prevents trigeminal stimulation, snorkel avoids apnea
25. If the SA node fails to trigger atrial excitation, the AV node, whose
automaticity is slower, will eventually kick in. What would be conspicuously
missing in the EKG?
26. What happens to plasma proteins at the glomerulus?
they remain in capillaries
27. What is the blood vessel leaving the glomerulus called?
28. We used blue light to excite emission from GFP (green fluorescent protein).
Why is the wavelength of fluorescent emission always longer than the wavelength
some of electron's energy is lost before it falls back, emitting light
29. Absence of what protein is the cause of edema from liver failure?
30. What would happen if there were no surfactant in alveolar fluid?
high surface tension would make breathing difficult at best
31. Aldosterone contributes to the resorption of what material?
32. Why don't you see atrial repolarization in the EKG?
swamped out by ventricular depolarization
33. What hormone increases the deployment of calcium into bone?
34. What is the Heymer test for respiratory reserve?
ability to hold breath
35. Why do you only hear arterial blood flow when the pressure is between
the systolic and diastolic values?
that is when it is turbulent
36. What was the most convenient way to get an accurate measurement of the
heart rate during the diving lab?
use a snippit of the pulse monitor
37. Why isn't your acuity greatly compromised when you look through a yellow
it would block blue light and you do not have many blue cones especially
at the fovea
38. If low blood pressure is detected in the kidney, what hormone is secreted?
39. A myopic patient is examined without glasses by an eye doctor using
an ophthalmoscope. (S)he may not get an accurate reading (for the eye glasses
prescription needed) because s(he) is subject to the same change of lens
shape that compensates for near and far vision. What is this compensatory
40. Why is the blood vessel exiting the glomerulus called an efferent arteriole
instead of a vein?
because there is a portal system to the medulla
41. Which ventricle pumps to the pulmonary circulation?
42. Who would have glycosurea?
an untreated diabetic
43. What is apnea?
44. What hormone depletes the Ca2+ from bone?
45. Repolarization to baseline of autorhythmic cells as well as muscle cells
in the heart is associated with an increased permeability to what ion?
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