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Foundations - Chapter 39 Questions and
Correct Answers
adventitious Ans: — abnormal breath sound over the lungs
alveoli Ans: — small air sacs at the end of the terminal bronchioles
that are the site of gas exchange
angina Ans: — a temporary imbalance between the amount of
oxygen needed by the heart and the amount delivered to the
muscles
arterial blood gas Ans: — a diagnostic test examining arterial
blood
used to determine the pressure exerted by oxygen and carbon
dioxide in the blood
atelectasis Ans: — incomplete expansion or collapse of a part of
the lungs
atria Ans: — upper chambers of the heart
atrioventricular bundle Ans: — a bundle of modified heart muscle
that transmits the cardiac impulse from the atrioventricular node
to the ventricles, causing them to contract
atrioventricular node Ans: — node of specialized heart muscle
located in the septal wall of the right atrium
receives impulses from the sinoatrial node and transmits them to
the atrioventricular bundle
bradypnea Ans: — slow rate of breathing
bronchial Ans: — those heard over the larynx and trachea are high
pitched, harsh "blowing" sounds, with sound on expiration being
longer than inspiration
bronchodilator Ans: — medication that relaxes contractions of
smooth muscles of the bronchioles
© 2025 All rights reserved
Foundations - Chapter 39 Questions and
Correct Answers
adventitious Ans: — abnormal breath sound over the lungs
alveoli Ans: — small air sacs at the end of the terminal bronchioles
that are the site of gas exchange
angina Ans: — a temporary imbalance between the amount of
oxygen needed by the heart and the amount delivered to the
muscles
arterial blood gas Ans: — a diagnostic test examining arterial
blood
used to determine the pressure exerted by oxygen and carbon
dioxide in the blood
atelectasis Ans: — incomplete expansion or collapse of a part of
the lungs
atria Ans: — upper chambers of the heart
atrioventricular bundle Ans: — a bundle of modified heart muscle
that transmits the cardiac impulse from the atrioventricular node
to the ventricles, causing them to contract
atrioventricular node Ans: — node of specialized heart muscle
located in the septal wall of the right atrium
receives impulses from the sinoatrial node and transmits them to
the atrioventricular bundle
bradypnea Ans: — slow rate of breathing
bronchial Ans: — those heard over the larynx and trachea are high
pitched, harsh "blowing" sounds, with sound on expiration being
longer than inspiration
bronchodilator Ans: — medication that relaxes contractions of
smooth muscles of the bronchioles
© 2025 All rights reserved
