UNC Biol 253 Midterm Exam with 5 5 5 5 5 5
accurate detailed solutions 5 5
The tiny air sacs of the lungs which mediate gas exchange with the blood are
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called ______. - Correct answer ✔alveoli
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The movement of air from the alveoli to the external environment during
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breathing is called __________, and movement from the atmosphere into the
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alveoli is called _________. - Correct answer ✔Expiration, Inspiration
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During the entire respiratory cycle, which chamber of the heart pumps blood
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into the pulmonary arteries? - Correct answer ✔Right ventricle
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During inspiration, air passes through the nose or the mouth (or both) into
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the _________, a passage common to both air and food. - Correct answer
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✔pharynx
Vocal cords are located in the ______. - Correct answer ✔Larynx
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The lungs contain tiny air sacs which serve as the sites of gas exchange with
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the blood. These sacs are called ________. - Correct answer ✔alveoli
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,Which of the following are parts of the upper airway system? - Correct answer
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✔nose, mouth, pharynx, and larynx
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The bulk flow of air from the alveoli into the atmosphere is called ________. -
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Correct answer ✔expiration
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A respiratory cycle consists of ______. - Correct answer ✔one inspiration and
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one expiration
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The site of gas exchange in the respiratory system is the __ ___. - Correct
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answer ✔alveoli 5
What structure would air flow through next after passing through the nose? -
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Correct answer ✔pharynx
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During inspiration, air passing through the larynx next enters the ______. -
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Correct answer ✔trachea
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The larynx houses the ______ ______, two folds of elastic tissue which vibrate
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producing sounds. - Correct answer ✔vocal cords
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Which of the following is NOT part of the respiratory airway? - Correct
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answer ✔diaphragm 5
The nose, mouth, pharynx, and larynx are collectively termed the ______. -
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Correct answer ✔upper airways
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,Which best describes inspiration? - Correct answer ✔movement of air from
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the atmosphere into the respiratory tract
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As air flows into the lungs from the atmosphere, ________ are the first type of
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airway branches that do not contain cartilaginous rings. - Correct answer
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✔bronchioles
The larynx opens into a long tube, the ______, which in turn branches into
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two ______. - Correct answer ✔trachea, bronchi
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The airways zone which contains no alveoli and does not exchange gases with
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the blood is called the _______ zone. - Correct answer ✔conducting
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The "respiratory zone" of the respiratory system includes which of the
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following? - Correct answer ✔Alveolar sacs, respiratory bronchioles, and
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alveolar ducts 5
What structures are collectively termed the upper airways. - Correct answer
5 5 5 5 5 5 5 5 5 5 5
✔mouth, nose, larynx, and pharynx 5 5 5 5
The zone of airways which contains alveoli and is the region of gas exchange
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with the blood is called the _________ zone. - Correct answer ✔respiratory
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, The epithelial surfaces of the airways through the respiratory bronchioles,
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contain _____ that constantly beat upward toward the pharynx to aid in the
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removal of inhaled particulates. - Correct answer ✔cilia
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As air enters the lungs, the first alveoli encountered are associated with which
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of the following structures. - Correct answer ✔respiratory bronchioles
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The lethal genetic disease caused by a defective CTFR gene that causes the
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production of thick mucus in the lungs is called _____ ______. - Correct
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answer ✔cystic fibrosis 5 5
The trachea is part of the _____ of the airway. - Correct answer ✔conducting
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zone
Which is a function of the conducting zone of the respiratory system? -
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Correct answer ✔-Regulates airway resistance by varying the contraction of
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smooth muscle in the walls. 5 5 5 5
-Warms and moistens inhaled air.
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-Warms and moistens inhaled air
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-Participates in the production of sounds for communication with others.
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-Has cilia, mucus, and macrophages that help defend against microbes and
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foreign matter that enter the system
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Which is NOT a function of the conducting zone of the respiratory system? -
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Correct answer ✔Exchanging oxygen and carbon dioxide between the blood
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and external environment.
5 5
accurate detailed solutions 5 5
The tiny air sacs of the lungs which mediate gas exchange with the blood are
5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
called ______. - Correct answer ✔alveoli
5 5 5 5 5
The movement of air from the alveoli to the external environment during
5 5 5 5 5 5 5 5 5 5 5 5
breathing is called __________, and movement from the atmosphere into the
5 5 5 5 5 5 5 5 5 5 5
alveoli is called _________. - Correct answer ✔Expiration, Inspiration
5 5 5 5 5 5 5 5
During the entire respiratory cycle, which chamber of the heart pumps blood
5 5 5 5 5 5 5 5 5 5 5 5
into the pulmonary arteries? - Correct answer ✔Right ventricle
5 5 5 5 5 5 5 5
During inspiration, air passes through the nose or the mouth (or both) into
5 5 5 5 5 5 5 5 5 5 5 5 5
the _________, a passage common to both air and food. - Correct answer
5 5 5 5 5 5 5 5 5 5 5 5 5
✔pharynx
Vocal cords are located in the ______. - Correct answer ✔Larynx
5 5 5 5 5 5 5 5 5 5
The lungs contain tiny air sacs which serve as the sites of gas exchange with
5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
the blood. These sacs are called ________. - Correct answer ✔alveoli
5 5 5 5 5 5 5 5 5 5
,Which of the following are parts of the upper airway system? - Correct answer
5 5 5 5 5 5 5 5 5 5 5 5 5
✔nose, mouth, pharynx, and larynx
5 5 5 5 5
The bulk flow of air from the alveoli into the atmosphere is called ________. -
5 5 5 5 5 5 5 5 5 5 5 5 5 5
Correct answer ✔expiration
5 5 5
A respiratory cycle consists of ______. - Correct answer ✔one inspiration and
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one expiration
5
The site of gas exchange in the respiratory system is the __ ___. - Correct
5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
answer ✔alveoli 5
What structure would air flow through next after passing through the nose? -
5 5 5 5 5 5 5 5 5 5 5 5 5
Correct answer ✔pharynx
5 5
During inspiration, air passing through the larynx next enters the ______. -
5 5 5 5 5 5 5 5 5 5 5 5
Correct answer ✔trachea
5 5
The larynx houses the ______ ______, two folds of elastic tissue which vibrate
5 5 5 5 5 5 5 5 5 5 5 5
producing sounds. - Correct answer ✔vocal cords
5 5 5 5 5 5 5
Which of the following is NOT part of the respiratory airway? - Correct
5 5 5 5 5 5 5 5 5 5 5 5 5
answer ✔diaphragm 5
The nose, mouth, pharynx, and larynx are collectively termed the ______. -
5 5 5 5 5 5 5 5 5 5 5 5
Correct answer ✔upper airways
5 5 5
,Which best describes inspiration? - Correct answer ✔movement of air from
5 5 5 5 5 5 5 5 5 5 5
the atmosphere into the respiratory tract
5 5 5 5 5
As air flows into the lungs from the atmosphere, ________ are the first type of
5 5 5 5 5 5 5 5 5 5 5 5 5 5
airway branches that do not contain cartilaginous rings. - Correct answer
5 5 5 5 5 5 5 5 5 5 5 5
✔bronchioles
The larynx opens into a long tube, the ______, which in turn branches into
5 5 5 5 5 5 5 5 5 5 5 5 5 5
two ______. - Correct answer ✔trachea, bronchi
5 5 5 5 5 5
The airways zone which contains no alveoli and does not exchange gases with
5 5 5 5 5 5 5 5 5 5 5 5
the blood is called the _______ zone. - Correct answer ✔conducting
5 5 5 5 5 5 5 5 5 5 5
The "respiratory zone" of the respiratory system includes which of the
5 5 5 5 5 5 5 5 5 5 5
following? - Correct answer ✔Alveolar sacs, respiratory bronchioles, and
5 5 5 5 5 5 5 5 5
alveolar ducts 5
What structures are collectively termed the upper airways. - Correct answer
5 5 5 5 5 5 5 5 5 5 5
✔mouth, nose, larynx, and pharynx 5 5 5 5
The zone of airways which contains alveoli and is the region of gas exchange
5 5 5 5 5 5 5 5 5 5 5 5 5 5
with the blood is called the _________ zone. - Correct answer ✔respiratory
5 5 5 5 5 5 5 5 5 5 5
, The epithelial surfaces of the airways through the respiratory bronchioles,
5 5 5 5 5 5 5 5 5 5
contain _____ that constantly beat upward toward the pharynx to aid in the
5 5 5 5 5 5 5 5 5 5 5 5 5
removal of inhaled particulates. - Correct answer ✔cilia
5 5 5 5 5 5 5
As air enters the lungs, the first alveoli encountered are associated with which
5 5 5 5 5 5 5 5 5 5 5 5
of the following structures. - Correct answer ✔respiratory bronchioles
5 5 5 5 5 5 5 5 5
The lethal genetic disease caused by a defective CTFR gene that causes the
5 5 5 5 5 5 5 5 5 5 5 5 5
production of thick mucus in the lungs is called _____ ______. - Correct
5 5 5 5 5 5 5 5 5 5 5 5 5
answer ✔cystic fibrosis 5 5
The trachea is part of the _____ of the airway. - Correct answer ✔conducting
5 5 5 5 5 5 5 5 5 5 5 5 5 5
zone
Which is a function of the conducting zone of the respiratory system? -
5 5 5 5 5 5 5 5 5 5 5 5 5
Correct answer ✔-Regulates airway resistance by varying the contraction of
5 5 5 5 5 5 5 5 5 5
smooth muscle in the walls. 5 5 5 5
-Warms and moistens inhaled air.
5 5 5 5
-Warms and moistens inhaled air
5 5 5 5
-Participates in the production of sounds for communication with others.
5 5 5 5 5 5 5 5 5
-Has cilia, mucus, and macrophages that help defend against microbes and
5 5 5 5 5 5 5 5 5 5 5
foreign matter that enter the system
5 5 5 5 5
Which is NOT a function of the conducting zone of the respiratory system? -
5 5 5 5 5 5 5 5 5 5 5 5 5 5
Correct answer ✔Exchanging oxygen and carbon dioxide between the blood
5 5 5 5 5 5 5 5 5 5
and external environment.
5 5
