Upper Respiratory System Multiple Choice Quiz 3 2. If you were giving an oral presentation on olfaction, which of the
following points would you likely include?
a. The process of olfaction begins when signals from the olfactory
area of the cerebral cortex move along the olfactory nerves to the
nasal cavity
b. The process of olfaction begins when neurons in the nasal cavity
receive signals from the olfactory bulbs of the brain.
C. As air enters the nasal cavity, chemicals in the air activate nervous
system receptors on the cilia, sending a signal from the nasal cavity
through the ethmoid bone, olfactory bulbs, and olfactory nerves to
the olfactory area of the cerebral cortex,
d. When air enters the nasal cavity, it stimulates mucus production,
and this mucus triggers signals in the olfactory area of the cerebral
cortex
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Awoman comes to your genetic counseling center because she knows that huntington disease occurs in members of her family. her paternal grandfather was afflicted, but so far her father shows no symptoms. her two great-great grandmothers on her father's side were healthy well into their 90s, and one of her great-great grandfathers died of unknown causes at 45. testing for huntington disease is extremely expensive, but she is concerned that she may fall victim to this disease and wants to plan her life accordingly. after examining her pedigree you advise her to

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis. b) it converts host cell rna into viral dna. c) it translates viral rna into proteins. d) it uses viral rna as a template for making complementary rna strands.

A35-year-old woman comes to the ed complaining of chest pressure. she has had such episodes intermittently over the last 5 years, usually when sleeping, but over the last year she has had more frequent severe symptoms that are occasionally associated with severe migraine headaches. the pain is midsternal and is described as pressure that extends as a band around her chest. the ed physician is initially dubious that the pain is cardiac in origin, because the woman has no coronary disease risk factors. an ecg, however, shows 2mm st-segment elevation and inverted t waves in leads v1 through v5 and 1mm st-segment depression in leads ii, iii, and avf. before the cardiologist arrives in the ed, the patient's ecg has returned to normal. this repeat normal ecg is obtained after the administration of aspirin, nitroglycerin, morphine, and oxygen. which of the following is most likely for these findings? - diffuse intimal thickening with focal areas of atherosclerotic narrowing - intermittent thrombus formation and lysis in the left anterior descending artery - intermittent thrombus formation and lysis in the right coronary artery - plaque rupture and thrombus formation in the left anterior descending artery - transiently increased coronary vascular tone in the right coronary artery