Thickness of the barriers separating the air or water from the blood increases because of
a. low or high environmental pH.
b. pulmonary edema.
c. pulmonary fibrosis.
d. pneumonia.
e. all of these.
E
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There are three pairs of tonsils named ____________________, ____________________, and ____________________.?
Fill in the blank(s) with correct word
Which of the following statements is TRUE?
A. Air moves into the lung when alveolar pressure falls just below atmospheric pressure B. Inspiration can be a passive process not requiring muscle contraction when you are asleep C. Boyle’s law states that the pressure of a gas is inversely proportional to its temperature D. Air moves out of the lung as alveolar pressure falls just below atmospheric pressure
Stimulation of receptors within the trigeminal nerve might produce a perception of
A) intensely sweet. B) intensely sour. C) quite salty. D) peppery hot. E) bitter.
In the autorhythmic SA node cells, the opening of the calcium channels allow
a) the further depolarization of these pacemaker cells b) the further repolarization of these pacemaker cells c) ventricular relaxation d) cardiac tamponade e) none of the above