Questions
Question 1
The respiratory control areas are in the
- alveoli.
- cerebral cortex.
- hypothalamus and hippocampus.
- pons and medulla oblongata.
Question 2
In a mixture of gases, each gas creates a pressure called its ______ ______.
Question 3
Bronchial asthma is usually caused by
- paralysis of breathing muscles.
- coalescing alveoli.
- an allergy.
- an injury to the respiratory areas.
Question 4
Carbon monoxide bonds to hemoglobin more effectively than does oxygen.
- True
- False
Question 5
In October 2001 at the site of the World Trade Center in New York City, fires were still burning from the terrorist attacks that had brought down the buildings. The greatest danger to the respiratory system was
- the odor.
- very large particles of debris.
- very small particles of debris.
- falling material from damaged buildings.
Question 6
The pharynx is an enlargement at the top of the trachea that houses the vocal cords.
- True
- False
Question 7
Globin is
- a form of surfactant.
- another term for alveolus.
- the protein part of hemoglobin, which carries oxygen in the blood.
- a fat that carries oxygen in the blood.
Question 8
Oxygen is carried in the blood in the form of bicarbonate ions and is bound to hemoglobin.
- True
- False
Question 9
The volume of air that enters the lungs during forced maximal inspiration is the
- tidal volume.
- expiratory reserve volume.
- vital capacity.
- inspiratory reserve volume.
Question 10
The chemoreceptors in the carotid and aortic bodies are most sensitive to changes in blood concentration of
- oxygen.
- bicarbonate ions.
- hydrogen ions.
- carbon dioxide.
Question 11
Which of these laryngeal cartilages is single?
- Arytenoid
- Cricoid
- Cuneiform
- Corniculate
Question 12
The hypoxia associated with high altitude can cause
- vasoconstriction of the pulmonary blood vessels.
- vasoconstriction of the coronary blood vessels.
- vasodilation of the major venous blood vessels.
- vasodilation of the major arterial blood vessels.
Question 13
Hyperventilation is usually accompanied by a(n)
- increase in blood CO2 concentration and a drop in pH.
- decrease in blood CO2 concentration and a rise in pH.
- decrease in blood CO2 concentration and a drop in pH.
- increase in blood CO2 concentration and a rise in pH.
Question 14
The force that moves air into the lungs during inspiration comes from the
- abdominal wall muscles.
- external intercostal muscles.
- diaphragm.
- atmospheric pressure.
Question 15
The glottis is the opening between the vocal cords.
- True
- False
ANSWERS
Question 1
The respiratory control areas are in the
- alveoli.
- cerebral cortex.
- hypothalamus and hippocampus.
- pons and medulla oblongata.
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