graded A+ updated
Epithelial cells of the alveoli are covered by a layer of water that does what to surface tension? -
correct answer ✔✔Increases
Damage to the lower motor neurons of C3, C4 and C5 (Phrenic nerve) has what effect? - correct
answer ✔✔Paralysis of the diaphragm
Elastic recoil of the lungs to their original volume is an active process - correct answer ✔✔False
What is the function of the type I pneumocytes? - correct answer ✔✔Responsible for gas
exchange that takes place in the alveoli
***This is an example of a test question***
By decreasing the surface tension, surfactant (detergent): - correct answer ✔✔increases lung
compliance, decreases lung elastic recoil
When the shape of a curve is sigmoidal this indicates what? - correct answer ✔✔Cooperative
binding
Oxygen moves from the _____________ to the ________________, which is from high
concentration to low concentration - correct answer ✔✔Alveoli, pulmonary capillaries
The atmospheric pressure in Fort Collins is approximately 630 mmHg. You would expect the
atmospheric pressure in Death Valley, which is below sea level, to be: - correct answer
✔✔greater than 630 mmHg
, The escape of carbon dioxide and resulting flatness of your beverage when opening a nice cold
"soda" is an example of: - correct answer ✔✔Henry's Law
With decreased blood pH, the oxygen dissociation curve would shift to the right. - correct
answer ✔✔True
In tissues, CO2 will get converted into ___________ through carbonic anhydrase. In the lungs,
the carbonic anhydrase coverts that into _____________ which then diffuses into the lungs. -
correct answer ✔✔H+ and HCO3-, H2O and CO2
While climbing a 14er, you realize that the urge to breath has increased. What compound is
responsible for driving a circuit to activate LMNs innervating the diaphragm? - correct answer
✔✔H+
Chemoreceptors in the periphery that monitor oxygen and carbon dioxide are located in:
Select all that apply. - correct answer ✔✔Aortic body, Carotid body
About 70% (most) of the carbon dioxide in the blood is transported as: - correct answer
✔✔HCO3-
The three major functions of the renal system are:
Select all that apply. - correct answer ✔✔Remove nitrogenous waste, regulate salt and water
balance, Regulate blood pH
Which of the following is the correct order of blood flow through the renal corpuscle? - correct
answer ✔✔Afferent arteriole, glomerulus, efferent arteriole