Bio 253 Exam 3 hondros questions and
answers 2026\2027 A+ Grade
The mechanism that produces pulmonary ventilation is one that establishes a gas pressure gradient
between the
- correct answer atmosphere and the alveolar air. Correct
Pressure gradients are established by changes in the
- correct answer thoracic cavity. Correct
_____ law states that the volume of a gas is inversely proportional to its pressure.
- correct answer Boyle's
During inspiration, as the size of the thorax increases, the
- correct answer intrapleural and alveolar pressures decrease. Correct
The ability of the lungs and thorax to stretch is referred to as
- correct answer 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
- correct answer asthma. Correct
During the respiratory cycle, intrapleural pressure is always less than alveolar pressure. This difference is
called
- correct answer transpulmonary pressure. Correct
, The sensors that provide feedback information to the medullary rhythmicity area are the
- correct answer central chemoreceptors and peripheral chemoreceptors. Correct
The apparatus used to measure the volume of air exchanged in breathing is called a(n)
- correct answer spirometer. Correct
The basic rhythm of the respiratory cycle of inspiration and expiration seems to be generated by the
- correct answer medullary rhythmicity area. Correct
Which term refers to the volume of inspired air that actually reaches, or "ventilates," the alveoli?
- correct answer alveolar ventilation Correct
The volume of air exhaled normally after a typical inspiration is called _____ volume.
- correct answer tidal Correct
Hyperpnea means a(n)
- correct answer increase in breathing. Correct
The _____ represents the largest volume of air an individual can move in and out of the lungs.
- correct answer vital capacity Correct
The forced expiratory volume test can determine the presence of respiratory obstruction by measuring
the
- correct answer 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
- correct answer directly related to the concentration of that gas in the mixture and to the total pressure
of the mixture. Correct
Oxygen enters blood from alveolar air because the partial pressure of alveolar air is
- correct answer greater than the partial pressure of incoming blood. Correct
answers 2026\2027 A+ Grade
The mechanism that produces pulmonary ventilation is one that establishes a gas pressure gradient
between the
- correct answer atmosphere and the alveolar air. Correct
Pressure gradients are established by changes in the
- correct answer thoracic cavity. Correct
_____ law states that the volume of a gas is inversely proportional to its pressure.
- correct answer Boyle's
During inspiration, as the size of the thorax increases, the
- correct answer intrapleural and alveolar pressures decrease. Correct
The ability of the lungs and thorax to stretch is referred to as
- correct answer 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
- correct answer asthma. Correct
During the respiratory cycle, intrapleural pressure is always less than alveolar pressure. This difference is
called
- correct answer transpulmonary pressure. Correct
, The sensors that provide feedback information to the medullary rhythmicity area are the
- correct answer central chemoreceptors and peripheral chemoreceptors. Correct
The apparatus used to measure the volume of air exchanged in breathing is called a(n)
- correct answer spirometer. Correct
The basic rhythm of the respiratory cycle of inspiration and expiration seems to be generated by the
- correct answer medullary rhythmicity area. Correct
Which term refers to the volume of inspired air that actually reaches, or "ventilates," the alveoli?
- correct answer alveolar ventilation Correct
The volume of air exhaled normally after a typical inspiration is called _____ volume.
- correct answer tidal Correct
Hyperpnea means a(n)
- correct answer increase in breathing. Correct
The _____ represents the largest volume of air an individual can move in and out of the lungs.
- correct answer vital capacity Correct
The forced expiratory volume test can determine the presence of respiratory obstruction by measuring
the
- correct answer 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
- correct answer directly related to the concentration of that gas in the mixture and to the total pressure
of the mixture. Correct
Oxygen enters blood from alveolar air because the partial pressure of alveolar air is
- correct answer greater than the partial pressure of incoming blood. Correct
