Pathophysiology Final Exam
The volume of air that moves during a single inspiration or expiration is known as:
a. tidal volume
b. inspiratory reserve volume
c. vital capacity
d. functional residual capacity - ANSWER a. tidal volume
The additional volume you inspire above the tidal volume represents:
a. vital capacity
b. functional residual volume
c. inspiratory reserve volume
d. inspiratory capacity - ANSWER c. inspiratory reserve volume
The amount of air forcefully exhaled after the end of a normal expiration is the:
a. tidal volume
b. functional residual volume
c. expiratory capacity
d. expiratory reserve volume - ANSWER d. expiratory reserve volume
which of the following lists the muscles used during inhalation?
a. Scalenes, internal intercostals, diaphragm
b. External intercostals, internal intercostals, abdominal muscles
c. SCOM, scalenes, external intercostals, diaphragm
d. SCOM, scalenes, internal intercostals, diaphragm - ANSWER c. SCOM, scalenes, external
intercostals, diaphragm
All of the following statements are true EXCEPT:
a. intrapleural pressure is more negative than alveolar pressure
b. alveolar pressure becomes positive during inspiration
,c. alveolar pressure becomes negative during inspiration
d. alveolar pressure becomes positive during expiration - ANSWER b. alveolar pressure
becomes positive during inspiration
Which of the following states that the total pressure exerted by a mixture of gases is the
sum of the pressures exerted by the individual gases?
a. Boyle's Law
b. Poisseuille's Law
c. Law of LaPlace
d. Dalton's Law - ANSWER d. Dalton's Law
What law states that if two bubbles have different diameters but are formed by fluids with
the same surface tension, the pressure inside the smaller bubble is greater than that
inside the larger bubble?
a. Boyle's Law
b. Poisseuille's Law
c. Law of LaPlace
d. Dalton's Law - ANSWER c. Law of LaPlace
Which of the following is a powerful bronchodilator?
a. parasympathetic nervous system
b. histamine
c. leukotrienes
d. carbon dioxide - ANSWER d. carbon dioxide
pathological conditions in which lung compliance is reduced are called:
a. obstructive lung disease
b. restrictive lung disease
c. emphysema
d. asthma - ANSWER b. restrictive lung disease
diseases in which air flow is diminished because of increased airway resistance are known
as:
, a. obstructive lung disease
b. restrictive lung disease
c. spinal cord injuries
d. muscular dystrophy - ANSWER a. obstructive lung disease
carbon dioxide can be transported in the body by all of the following ways EXCEPT:
a. dissolved in the plasma
b. bound to hemoglobin
c. as bicarbonate ions
d. bound to hormones - ANSWER d. bound to hormones
Chemoreceptors that monitor arterial blood composition to avoid hypoxia and
hypercapnia respond to all of the following variables EXCEPT:
a. oxygen levels
b. carbon dioxide levels
c. pH
d. glucose levels - ANSWER d. glucose levels
Low arterial oxygen caused by a decrease in lung diffusion capacity can lead to:
a. hypoxic hypoxia
b. anemic hypoxia
c. ischemic hypoxia
d. histotoxic hypoxia - ANSWER a. hypoxic hypoxia
A decrease in the total amount of oxygen bound to hemoglobin caused by severe blood
loss can lead to:
a. hypoxic hypoxia
b. anemic hypoxia
c. ischemic hypoxia
d. histotoxic hypoxia - ANSWER b. anemic hypoxia
Reduced blood flow caused by heart failure or thrombosis can lead to:
The volume of air that moves during a single inspiration or expiration is known as:
a. tidal volume
b. inspiratory reserve volume
c. vital capacity
d. functional residual capacity - ANSWER a. tidal volume
The additional volume you inspire above the tidal volume represents:
a. vital capacity
b. functional residual volume
c. inspiratory reserve volume
d. inspiratory capacity - ANSWER c. inspiratory reserve volume
The amount of air forcefully exhaled after the end of a normal expiration is the:
a. tidal volume
b. functional residual volume
c. expiratory capacity
d. expiratory reserve volume - ANSWER d. expiratory reserve volume
which of the following lists the muscles used during inhalation?
a. Scalenes, internal intercostals, diaphragm
b. External intercostals, internal intercostals, abdominal muscles
c. SCOM, scalenes, external intercostals, diaphragm
d. SCOM, scalenes, internal intercostals, diaphragm - ANSWER c. SCOM, scalenes, external
intercostals, diaphragm
All of the following statements are true EXCEPT:
a. intrapleural pressure is more negative than alveolar pressure
b. alveolar pressure becomes positive during inspiration
,c. alveolar pressure becomes negative during inspiration
d. alveolar pressure becomes positive during expiration - ANSWER b. alveolar pressure
becomes positive during inspiration
Which of the following states that the total pressure exerted by a mixture of gases is the
sum of the pressures exerted by the individual gases?
a. Boyle's Law
b. Poisseuille's Law
c. Law of LaPlace
d. Dalton's Law - ANSWER d. Dalton's Law
What law states that if two bubbles have different diameters but are formed by fluids with
the same surface tension, the pressure inside the smaller bubble is greater than that
inside the larger bubble?
a. Boyle's Law
b. Poisseuille's Law
c. Law of LaPlace
d. Dalton's Law - ANSWER c. Law of LaPlace
Which of the following is a powerful bronchodilator?
a. parasympathetic nervous system
b. histamine
c. leukotrienes
d. carbon dioxide - ANSWER d. carbon dioxide
pathological conditions in which lung compliance is reduced are called:
a. obstructive lung disease
b. restrictive lung disease
c. emphysema
d. asthma - ANSWER b. restrictive lung disease
diseases in which air flow is diminished because of increased airway resistance are known
as:
, a. obstructive lung disease
b. restrictive lung disease
c. spinal cord injuries
d. muscular dystrophy - ANSWER a. obstructive lung disease
carbon dioxide can be transported in the body by all of the following ways EXCEPT:
a. dissolved in the plasma
b. bound to hemoglobin
c. as bicarbonate ions
d. bound to hormones - ANSWER d. bound to hormones
Chemoreceptors that monitor arterial blood composition to avoid hypoxia and
hypercapnia respond to all of the following variables EXCEPT:
a. oxygen levels
b. carbon dioxide levels
c. pH
d. glucose levels - ANSWER d. glucose levels
Low arterial oxygen caused by a decrease in lung diffusion capacity can lead to:
a. hypoxic hypoxia
b. anemic hypoxia
c. ischemic hypoxia
d. histotoxic hypoxia - ANSWER a. hypoxic hypoxia
A decrease in the total amount of oxygen bound to hemoglobin caused by severe blood
loss can lead to:
a. hypoxic hypoxia
b. anemic hypoxia
c. ischemic hypoxia
d. histotoxic hypoxia - ANSWER b. anemic hypoxia
Reduced blood flow caused by heart failure or thrombosis can lead to:
