A&P WCC Exam 5 Practice 98 Questions with Verified
Answer
Of the respiratory air volumes listed, which one has the largest volume?
A. Vital capacity.
B. Inspiratory reserve volume.
C. Tidal volume.
D. Expiratory reserve volume. - CORRECT ANSWER A. Vital capacity.
The concept of oxygen being unloaded in response to low pH is known as
A. the Haldane effect
B. the Bohr effect
C. Starling's law
D. Boyle's law - CORRECT ANSWER B. the Bohr effect
The amount of oxygen released from oxyhemoglobin increases when
A. Carbon dioxide concentration decreases.
B. Temperature decreases.
C. Carbon dioxide concentration increases.
D. Blood becomes more alkaline. - CORRECT ANSWER C. Carbon dioxide
concentration increases.
As the respiratory tube branches become smaller in diameter,
A.The epithelial lining changes from pseudostratified ciliated columnar to
cuboidal and simple squamous epithelium.
B. They have increased cartilage.
C. They have increased muscle fibers.
D. The epithelial lining changes to connective tissue. - CORRECT ANSWER A.The
epithelial lining changes from pseudostratified ciliated columnar to cuboidal and
simple squamous epithelium.
The enzyme carbonic anhydrase causes
A. Carbon dioxide to react with water.
,B. Carbon dioxide to react with bicarbonate ions.
C. Water to react with bicarbonate ions.
D. Water to react with hydrogen ions. - CORRECT ANSWER A. Carbon dioxide to
react with water.
The trachea
A. Is lined with a ciliated mucous membrane.
B. Includes 20 C-shaped cartilage rings.
C. Is a passageway for air.
D. All of the above. - CORRECT ANSWER D. All of the above.
The first event in inspiration is
A. Decreased intra-alveolar pressure.
B. Lung inflation.
C.The diaphragm moves downward and the external intercostals contract.
D. Atmospheric pressure forces air into the respiratory tract. - CORRECT ANSWER
C.The diaphragm moves downward and the external intercostals contract.
Boyle's law states that the air which is inhaled is warmed and causes the lungs to
expand.
True
False - CORRECT ANSWER True
The inverse relationship between pressure and volume is known as
A. Boyle's law.
B. Starling's law.
C. Newton's law.
D. Dalton's law. - CORRECT ANSWER A. Boyle's law.
The respiratory control areas are in the
A. Hypothalamus and hippocampus.
B. Cerebral cortex.
C. Pons and medulla oblongata.
D. Alveol - CORRECT ANSWER C. Pons and medulla oblongata.
The force that moves air into the lungs during inspiration comes from the
A. Atmospheric pressure.
, B. Abdominal wall muscles.
C. Diaphragm.
D. External intercostal muscles. - CORRECT ANSWER A. Atmospheric pressure.
If: IRV=2,000ml, ERV=1,000ml, TV=500 and RV=100. Which of the
following represent the correct vital capacity.
A. 3, 500 ml
B. 600 ml
C. 3,600 ml
D. 3,000 ml - CORRECT ANSWER A. 3, 500 ml
Contractions of the respiratory muscles result in a (n)
A. Increase in the volume of the thorax.
B.Decrease in the amount of blood flowing to the lungs.
C. Decrease in the volume of the thorax.
D.Increase in the amount of blood flowing to the lungs. - CORRECT ANSWER A.
Increase in the volume of the thorax.
The vocal cords are in the
A. Larynx.
B. Oral cavity.
C. Trachea.
D. Pharynx. - CORRECT ANSWER A. Larynx.
Which of the following is not a function of the mucus-covered nasal passages?
A. Entrapping small particles.
B. Cooling exhaled air.
C. Warming inspired air.
D. Moistening inspired air. - CORRECT ANSWER B. Cooling exhaled air.
Alveoli are kept clean by the action of
A. Surfactant.
B. Antibodies.
C. Platelets.
D. Macrophages. - CORRECT ANSWER D. Macrophages.
What is the definition of ventilation?
Answer
Of the respiratory air volumes listed, which one has the largest volume?
A. Vital capacity.
B. Inspiratory reserve volume.
C. Tidal volume.
D. Expiratory reserve volume. - CORRECT ANSWER A. Vital capacity.
The concept of oxygen being unloaded in response to low pH is known as
A. the Haldane effect
B. the Bohr effect
C. Starling's law
D. Boyle's law - CORRECT ANSWER B. the Bohr effect
The amount of oxygen released from oxyhemoglobin increases when
A. Carbon dioxide concentration decreases.
B. Temperature decreases.
C. Carbon dioxide concentration increases.
D. Blood becomes more alkaline. - CORRECT ANSWER C. Carbon dioxide
concentration increases.
As the respiratory tube branches become smaller in diameter,
A.The epithelial lining changes from pseudostratified ciliated columnar to
cuboidal and simple squamous epithelium.
B. They have increased cartilage.
C. They have increased muscle fibers.
D. The epithelial lining changes to connective tissue. - CORRECT ANSWER A.The
epithelial lining changes from pseudostratified ciliated columnar to cuboidal and
simple squamous epithelium.
The enzyme carbonic anhydrase causes
A. Carbon dioxide to react with water.
,B. Carbon dioxide to react with bicarbonate ions.
C. Water to react with bicarbonate ions.
D. Water to react with hydrogen ions. - CORRECT ANSWER A. Carbon dioxide to
react with water.
The trachea
A. Is lined with a ciliated mucous membrane.
B. Includes 20 C-shaped cartilage rings.
C. Is a passageway for air.
D. All of the above. - CORRECT ANSWER D. All of the above.
The first event in inspiration is
A. Decreased intra-alveolar pressure.
B. Lung inflation.
C.The diaphragm moves downward and the external intercostals contract.
D. Atmospheric pressure forces air into the respiratory tract. - CORRECT ANSWER
C.The diaphragm moves downward and the external intercostals contract.
Boyle's law states that the air which is inhaled is warmed and causes the lungs to
expand.
True
False - CORRECT ANSWER True
The inverse relationship between pressure and volume is known as
A. Boyle's law.
B. Starling's law.
C. Newton's law.
D. Dalton's law. - CORRECT ANSWER A. Boyle's law.
The respiratory control areas are in the
A. Hypothalamus and hippocampus.
B. Cerebral cortex.
C. Pons and medulla oblongata.
D. Alveol - CORRECT ANSWER C. Pons and medulla oblongata.
The force that moves air into the lungs during inspiration comes from the
A. Atmospheric pressure.
, B. Abdominal wall muscles.
C. Diaphragm.
D. External intercostal muscles. - CORRECT ANSWER A. Atmospheric pressure.
If: IRV=2,000ml, ERV=1,000ml, TV=500 and RV=100. Which of the
following represent the correct vital capacity.
A. 3, 500 ml
B. 600 ml
C. 3,600 ml
D. 3,000 ml - CORRECT ANSWER A. 3, 500 ml
Contractions of the respiratory muscles result in a (n)
A. Increase in the volume of the thorax.
B.Decrease in the amount of blood flowing to the lungs.
C. Decrease in the volume of the thorax.
D.Increase in the amount of blood flowing to the lungs. - CORRECT ANSWER A.
Increase in the volume of the thorax.
The vocal cords are in the
A. Larynx.
B. Oral cavity.
C. Trachea.
D. Pharynx. - CORRECT ANSWER A. Larynx.
Which of the following is not a function of the mucus-covered nasal passages?
A. Entrapping small particles.
B. Cooling exhaled air.
C. Warming inspired air.
D. Moistening inspired air. - CORRECT ANSWER B. Cooling exhaled air.
Alveoli are kept clean by the action of
A. Surfactant.
B. Antibodies.
C. Platelets.
D. Macrophages. - CORRECT ANSWER D. Macrophages.
What is the definition of ventilation?
