Bio 253 Exam 3 hondros Questions with
Verified Correct Answers
The mechanism that produces pulmonary ventilation is one that establishes a gas
pressure gradient between the
atmosphere and the alveolar air. Correct
Pressure gradients are established by changes in the
thoracic cavity. Correct
_____ law states that the volume of a gas is inversely proportional to its pressure.
Boyle's
During inspiration, as the size of the thorax increases, the
intrapleural and alveolar pressures decrease. Correct
The ability of the lungs and thorax to stretch is referred to as
compliance. Correct
An obstructive lung disorder that is characterized by recurring spasms of the smooth
muscles in the wall of the bronchial air passages is
asthma. Correct
During the respiratory cycle, intrapleural pressure is always less than alveolar pressure.
This difference is called
transpulmonary pressure. Correct
The sensors that provide feedback information to the medullary rhythmicity area are
the
, central chemoreceptors and peripheral chemoreceptors. Correct
The apparatus used to measure the volume of air exchanged in breathing is called a(n)
spirometer. Correct
The basic rhythm of the respiratory cycle of inspiration and expiration seems to be
generated by the
medullary rhythmicity area. Correct
Which term refers to the volume of inspired air that actually reaches, or "ventilates,"
the alveoli?
alveolar ventilation Correct
The volume of air exhaled normally after a typical inspiration is called _____ volume.
tidal Correct
Hyperpnea means a(n)
increase in breathing. Correct
The _____ represents the largest volume of air an individual can move in and out of the
lungs.
vital capacity Correct
The forced expiratory volume test can determine the presence of respiratory
obstruction by measuring the
volume of air expired per second during forced expiration. Correct
According to the law of partial pressures, the partial pressure of gas in a mixture of
gases is
Verified Correct Answers
The mechanism that produces pulmonary ventilation is one that establishes a gas
pressure gradient between the
atmosphere and the alveolar air. Correct
Pressure gradients are established by changes in the
thoracic cavity. Correct
_____ law states that the volume of a gas is inversely proportional to its pressure.
Boyle's
During inspiration, as the size of the thorax increases, the
intrapleural and alveolar pressures decrease. Correct
The ability of the lungs and thorax to stretch is referred to as
compliance. Correct
An obstructive lung disorder that is characterized by recurring spasms of the smooth
muscles in the wall of the bronchial air passages is
asthma. Correct
During the respiratory cycle, intrapleural pressure is always less than alveolar pressure.
This difference is called
transpulmonary pressure. Correct
The sensors that provide feedback information to the medullary rhythmicity area are
the
, central chemoreceptors and peripheral chemoreceptors. Correct
The apparatus used to measure the volume of air exchanged in breathing is called a(n)
spirometer. Correct
The basic rhythm of the respiratory cycle of inspiration and expiration seems to be
generated by the
medullary rhythmicity area. Correct
Which term refers to the volume of inspired air that actually reaches, or "ventilates,"
the alveoli?
alveolar ventilation Correct
The volume of air exhaled normally after a typical inspiration is called _____ volume.
tidal Correct
Hyperpnea means a(n)
increase in breathing. Correct
The _____ represents the largest volume of air an individual can move in and out of the
lungs.
vital capacity Correct
The forced expiratory volume test can determine the presence of respiratory
obstruction by measuring the
volume of air expired per second during forced expiration. Correct
According to the law of partial pressures, the partial pressure of gas in a mixture of
gases is
