The primary direction of fibers in most muscles of the head and face is ________
a. superior to inferior
b. inferior to superior
c. lateral to medial
d. medial to lateral
e. Both a and b
f. Both c and d
e
Health Professions
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Which of the following modes of mechanical ventilation is/are more likely to produce an altered PaCO2 in patients in response to chemoreceptor input? I. continuous mandatory ventilation II, proportional assist ventilation III. pressure support ventilation IV. assist-control (volume-cycled) ventilation
A. III only B. II, IV only C. III, IV only D. I, II, III only
Health Professions
Large airborne particles are filtered by the?
A) ?external nares. B) ?soft palate. C) ?nasal hairs. D) ?nasal sinuses.
Health Professions