Question 1

The maximum amount of air the lungs can contain is known as inspiratory capacity.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following enzymes in an RBC breaks H2CO3 down to water and carbon dioxide?

Accepted Answer

A)  Hemoglobinase
B)  Carboxyhemoglobinase
C)  Carbonic anhydrase
D)  Bisphosphoglycerase
E)  CarbaminoreductaseF) B) and D)
G) A) and B)

Question 3

In the air we breathe,which gas is found in the highest concentration?

Accepted Answer

A)  Oxygen
B)  Water vapor
C)  Nitrogen
D)  Carbon dioxide
E)  HydrogenF) D) and E)
G) A) and C)

Question 4

Which of the following cartilages is largest?

Accepted Answer

A)  Corniculate cartilage
B)  Epiglottic cartilage
C)  Thyroid cartilage
D)  Cricoid cartilage
E)  Arytenoid cartilageF) A) and E)
G) C) and D)

Question 5

The amount of air in excess of tidal volume that can be inhaled with maximum effort is the __________.

Accepted Answer

A)  vital capacity
B)  inspiratory reserve volume
C)  expiratory reserve volume
D)  residual volume
E)  inspiratory capacityF) B) and D)
G) All of the above

Question 6

Which center bears the primary responsibility for generating the respiratory rhythm,but is influenced by several other centers?

Accepted Answer

A)  PRG
B)  DRG
C)  VRG
D)  SRGE) C) and D)
F) A) and D)

Question 7

Which of the following is the term for a deficiency of oxygen or the inability to utilize oxygen in a tissue?

Accepted Answer

A)  Apoxia
B)  Hypoxia
C)  Anoxia
D)  Cyanosis
E)  EupneaF) A) and C)
G) A) and D)

Question 8

Which of these is most likely to result from contact between contaminated fingers and the nasal mucosa?

Accepted Answer

A)  Apnea
B)  Adult respiratory distress syndrome
C)  Acute bronchitis
D)  Acute rhinitis
E)  AsthmaF) B) and D)
G) B) and C) D

Question 9

Which of the following would lead to anemic hypoxia?

Accepted Answer

A)  Sickle-cell disease
B)  Emphysema
C)  Squamous-cell carcinoma
D)  Asthma
E)  AtelectasisF) A) and E)
G) A) and D)

Question 10

Conditions around metabolically active tissues do what to the oxyhemoglobin dissociation curve?

Accepted Answer

A)  Shift it right
B)  Shift it left
C)  Decrease the slope
D)  Increase the slopeE) All of the above
F) A) and B) A

Question 11

The upper respiratory tract extends from the nose through the _________.

Accepted Answer

A)  trachea
B)  pharynx
C)  larynx
D)  alveoli
E)  lungsF) A) and B)
G) A) and C)

Question 12

The nose is divided into right and left halves called the __________.

Accepted Answer

A)  nasal cavities
B)  nasal fossae
C)  nasal septa
D)  nasal vestibules
E)  nasal aperturesF) A) and D)
G) A) and C)

Question 13

Which of the following issues output to the VRG to adjust the respiratory rhythm?

Accepted Answer

A)  DRG
B)  PRG
C)  NRG
D)  SRGE) A) and D)
F) C) and D)

Question 14

The anatomical dead space is greatest in which of the following situations?

Accepted Answer

A)  After eating a large meal
B)  After swerving to narrowly avoid an accident while driving
C)  After waking up from a long nap
D)  After watching TV for an hourE) A) and D)
F) B) and C)

Question 15

Air consists of about 78.6% nitrogen,20.9% oxygen,0.04% carbon dioxide,and 0.5% water.At sea level,(760 mmHg) what is the PCO2?

Accepted Answer

A)  597 mm Hg
B)  159 mm Hg
C)  0.3 mm Hg
D)  3.7 mm HgE) A) and C)
F) C) and D)

Question 16

Crude sounds are formed into intelligible speech by all of the following except the _________.

Accepted Answer

A)  pharynx
B)  epiglottis
C)  oral cavity
D)  tongue
E)  lipsF) None of the above
G) B) and E) B

Question 17

Which of the following is a lung disease marked by a reduced number of cilia,reduced motility of the remaining cilia,goblet cell hypertrophy and hypersecretion,and thick sputum?

Accepted Answer

A)  Asthma
B)  Oat-cell carcinoma
C)  Atelectasis
D)  Chronic bronchitis
E)  EmphysemaF) B) and D)
G) C) and D)

Question 18

In a healthy person,which of the following will have the greatest influence on resistance to pulmonary airflow?

Accepted Answer

A)  Atmospheric pressure
B)  Respiratory rate
C)  Bronchiole diameter
D)  Quantity of surfactant
E)  Contraction of the diaphragmF) B) and E)
G) D) and E)

Question 19

If one inspires through their nose,which of the following answers has the correct order of structures the air would move through?

Accepted Answer

A)  Nares  →\rarr→  Vestibule  →\rarr→  Nasal Cavity  →\rarr→  Nasopharynx  →\rarr→ Oropharynx  →\rarr→  Laryngopharynx  →\rarr→  Larynx  →\rarr→  Trachea →\rarr→  Primary Bronchus  →\rarr→ Secondary Bronchus  →\rarr→ Tertiary Bronchus  →\rarr→  Bronchiole  →\rarr→  Respiratory Bronchiole  →\rarr→ Terminal Bronchiole  →\rarr→  Alveolar Duct  →\rarr→  Alveolar Sac  →\rarr→  Alveolus
B)  Nares  →\rarr→  Nasal Cavity  →\rarr→ Vestibule  →\rarr→  Nasopharynx  →\rarr→ Oropharynx  →\rarr→  Laryngopharynx  →\rarr→ Larynx  →\rarr→  Trachea  →\rarr→  Primary Bronchus  →\rarr→  Secondary Bronchus  →\rarr→  Tertiary Bronchus  →\rarr→  Bronchiole  →\rarr→  Terminal Bronchiole  →\rarr→  Respiratory Bronchiole  →\rarr→ Alveolar Duct  →\rarr→  Alveolar Sac  →\rarr→  Alveolus
C)  Nares  →\rarr→  Vestibule  →\rarr→  Nasal Cavity  →\rarr→  Nasopharynx  →\rarr→  Oropharynx  →\rarr→  Laryngopharynx  →\rarr→  Larynx  →\rarr→  Trachea  →\rarr→  Bronchiole  →\rarr→  Respiratory Bronchiole  →\rarr→  Terminal Bronchiole  →\rarr→ Primary Bronchus  →\rarr→  Secondary Bronchus  →\rarr→  Tertiary Bronchus  →\rarr→  Alveolar Duct  →\rarr→  Alveolar Sac  →\rarr→  Alveolus
D)  Nares  →\rarr→  Nasal Cavity  →\rarr→  Vestibule  →\rarr→  Nasopharynx  →\rarr→ Oropharynx  →\rarr→  Laryngopharynx  →\rarr→  Larynx  →\rarr→  Trachea  →\rarr→  Primary Bronchus  →\rarr→  Secondary Bronchus  →\rarr→  Tertiary Bronchus  →\rarr→  Bronchiole  →\rarr→  Respiratory Bronchiole  →\rarr→  Terminal Bronchiole  →\rarr→  Alveolar Duct  →\rarr→  Alveolar Sac  →\rarr→  Alveolus E) None of the above
F) All of the above

Question 20

How is alveolar air different than inspired air?

Accepted Answer

A)  Alveolar air has a higher PN2 than inspired air.
B)  Alveolar air has a lower PCO2 than inspired air.
C)  Alveolar air has a higher PO2 than inspired air.
D)  Alveolar air has a higher PH2O than inhaled air.E) All of the above
F) C) and D)

Exam 22: The Respiratory System

The maximum amount of air the lungs can contain is known as inspiratory capacity.

Correct AnswerverifiedShow Answer

Which of the following enzymes in an RBC breaks H2CO3 down to water and carbon dioxide?

Correct AnswerverifiedShow Answer

In the air we breathe,which gas is found in the highest concentration?

Correct AnswerverifiedShow Answer

Which of the following cartilages is largest?

Correct AnswerverifiedShow Answer

The amount of air in excess of tidal volume that can be inhaled with maximum effort is the __________.

Correct AnswerverifiedShow Answer

Which center bears the primary responsibility for generating the respiratory rhythm,but is influenced by several other centers?

Correct AnswerverifiedShow Answer

Which of the following is the term for a deficiency of oxygen or the inability to utilize oxygen in a tissue?

Correct AnswerverifiedShow Answer

Which of these is most likely to result from contact between contaminated fingers and the nasal mucosa?

Correct AnswerverifiedD

Which of the following would lead to anemic hypoxia?

Correct AnswerverifiedShow Answer

Conditions around metabolically active tissues do what to the oxyhemoglobin dissociation curve?

Correct AnswerverifiedA

The upper respiratory tract extends from the nose through the _________.

Correct AnswerverifiedShow Answer

The nose is divided into right and left halves called the __________.

Correct AnswerverifiedShow Answer

Which of the following issues output to the VRG to adjust the respiratory rhythm?

Correct AnswerverifiedShow Answer

The anatomical dead space is greatest in which of the following situations?

Correct AnswerverifiedShow Answer

Air consists of about 78.6% nitrogen,20.9% oxygen,0.04% carbon dioxide,and 0.5% water.At sea level,(760 mmHg) what is the PCO2?

Correct AnswerverifiedShow Answer

Crude sounds are formed into intelligible speech by all of the following except the _________.

Correct AnswerverifiedB

Which of the following is a lung disease marked by a reduced number of cilia,reduced motility of the remaining cilia,goblet cell hypertrophy and hypersecretion,and thick sputum?

Correct AnswerverifiedShow Answer

In a healthy person,which of the following will have the greatest influence on resistance to pulmonary airflow?

Correct AnswerverifiedShow Answer

If one inspires through their nose,which of the following answers has the correct order of structures the air would move through?

Correct AnswerverifiedShow Answer

How is alveolar air different than inspired air?

Correct AnswerverifiedShow Answer

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Which of the following enzymes in an RBC breaks H₂CO₃ down to water and carbon dioxide?

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D

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A

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B

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