A short while after a person has died, a “gasp” of air may occur as the lungs collapse. This flow would represent the
Question 1A short while after a person has died, a “gasp” of air may occur as the lungs collapse. This flow would represent the
vital capacity.
residual volume.
tidal volume.
expiratory reserve volume.
total lung volume.
Question 2After the trachea, what is the next structure that air passes through?
bronchi
alveolus
pharynx
larynx
bronchioles
Question 3Compared to outside air, describe the air that reaches the lungs.
warmer and with less moisture
cooler and with more moisture
exactly the same
cooler and with less moisture
warmer and with more moisture
Question 4From the inside of the lungs, what is the first cell type the air must pass through to reach the blood?
muscle
simple squamous epithelium
pseudostratified ciliated columnar epithelium
red blood cells
cartilage
Question 5Phillip is breathing at approximately 40 ventilations per minute. What is the respiratory center indicating?
high carbon dioxide concentration in the blood
low oxygen concentration in the blood
low oxygen concentration in the lungs
stretch receptors in the alveolar walls
the firing of the intercostal nerves
Question 6The breathing rate is controlled by chemoreceptors that detect
levels of carbon dioxide in the blood.
level of stretching of the rib muscles and diaphragm.
levels of oxygen in the blood.
levels of carbon dioxide in the alveolar air space.
levels of oxygen in the alveolar air space.
Question 7The vocal cords are found in the
lungs.
bronchi.
larynx.
nose.
pharynx.
Question 8
Which is NOT a association of lower respiratory problems and causes or symptoms?
emphysema—reduced lung and chest volume due to collapsed alveoli and overventilation
chronic bronchitis—ongoing inflammation and possible infection of bronchi with loss of cilia
Pneumocystis carinii—pneumonia caused by a protozoan in absence of a healthy immune system
pulmonary fibrosis—loss of lung elasticity due to breathing silica, coal dust, asbestos, etc.
pulmonary tuberculosis—a bacterial infection that the body tries to isolate and seal off
Question 9Which of the following is an upper respiratory tract disease?
acute bronchitis
pneumonia
cystic fibrosis
pharyngitis
asthma
Question 10You are looking at a structure in the respiratory tract that is filled with small sacs or air pockets. What structure are you looking at?
nose
larynx
alveoli
bronchi
pharynx
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