A whistling murmur heard between the second and first heart sound would be indicative of
a. a stenotic AV valve
b. an insufficient AV valve
c. a myocardial infarction
d. an insufficient semilunar valve
e. an everted AV valve during atrial diastole
A
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The process by which dissolved gases are exchanged between the blood and interstitial fluids is
A) cellular respiration. B) external respiration. C) breathing. D) diffusion. E) pulmonary ventilation.
________ capillaries have endothelial cells pierced by filtration pores that allow the rapid passage of small molecules.
Fill in the blank(s) with the appropriate word(s).
The initial response to stress is called the ________ and is mediated mainly by ________.
A. exhaustion stage; norepinephrine and epinephrine B. alarm reaction; norepinephrine and epinephrine C. resistance stage; aldosterone and cortisol D. resistance stage; cortisol E. alarm reaction; cortisol
Surfactant aids in stabilizing the inflation of alveoli via its ability to decrease surface tension
What best describes the mechanism of interdependence, created by the pores of Kohn and canals of Lambert, which is also important in alveolar inflation. A. connect adjacent alveoli and terminal airways to adjacent alveoli B. connect nonrespiratory bronchioles to alveoli C. connect nonrespiratory bronchioles to respiratory bronchioles D. connect adjacent respiratory bronchioles