Question 1

When these ligaments or folds come together, they prevent food from entering the lower respiratory tract.

Accepted Answer

A)   vocal folds
B)   vestibular folds
C)   cricothyroid ligaments
D)   epiglottic folds
E)   vocal folds and vestibular foldsF) B) and E)
G) A) and E)

Question 2

-What does "E" represent on the diagram?

Accepted Answer

A)   larynx
B)   lungs
C)   trachea
D)   pharynx
E)   bronchiF) C) and D)
G) A) and E)

Question 3

Which of the following statements regarding the lungs is correct?

Accepted Answer

A)   The left lung is larger than the right lung.
B)   The left lung contains two lobes while the right lung contains three lobes.
C)   The left lung has more bronchopulmonary segments than the right lung.
D)   Only the right lung has a hilum.
E)   The left lung contains three lobes while the right lung contains two lobes.F) D) and E)
G) B) and D)

Question 4

Oxygen diffusion from the alveolus to the pulmonary capillary occurs because

Accepted Answer

A)   alveolar PO2 is greater than capillary PO2.
B)   oxygen diffuses faster than carbon dioxide.
C)   alveolar PCO2 is greater than capillary PCO2.
D)   alveolar PO2 is less than capillary PCO2.
E)   carbon dioxide diffuses faster than oxygen.F) A) and B)
G) B) and D)

Question 5

Match the term with the appropriate description or definition.
-tidal volume
"Enter the letter of the correct description below"

Accepted Answer

A)  sum of the inspiratory reserve, expiratory reserve, tidal, and residual volumes
B)  volume of air inspired during a normal inspiration
C)  volume of air remaining in lungs after the most forceful expiration
D)  sum of the expiratory reserve, inspiratory reserve, and tidal volumes
E)  the amount of air that can be forcefully expired after expiration of the normal tidal volumeF) A) and C)
G) A) and E)

Question 6

-Which of the patients above has a severe case of "test anxiety"?

Accepted Answer

The answer of 
-Which of the patients above has a...

Question 7

Whenever people cry, their nose runs. This is because the _____ drain tears into the nose.

Accepted Answer

A)   nasolacrimal ducts
B)   paranasal sinuses
C)   lacrimal glands
D)   Wharten's ducts
E)   auditory tubeF) A) and B)
G) A) and E)

Question 8

The highest level of exercise that can be performed without causing a significant change in blood pH is called the

Accepted Answer

A)   Hering-Breuer reflex.
B)   aerobic threshold.
C)   anaerobic threshold.
D)   lactic acid tolerance level.E) A) and C)
F) None of the above

Question 9

-What does "B" represent on the diagram?

Accepted Answer

A)   larynx
B)   lungs
C)   trachea
D)   pharynx
E)   bronchiF) B) and C)
G) All of the above

Question 10

Why is fetal hemoglobin very efficient at picking up oxygen?

Accepted Answer

A)   The BPG levels are much higher than in maternal hemoglobin.
B)   The fetal oxygen-dissociation curve is to the right of the maternal oxygen-dissociation curve.
C)   The concentration of fetal hemoglobin is 10% greater than the concentration of maternal hemoglobin.
D)   The fetal oxygen-dissociation curve is to the left of the maternal oxygen-dissociation curve.E) A) and D)
F) None of the above

Question 11

What is the function of the nasal conchae?

Accepted Answer

A)   increases turbulence in the airflow
B)   olfaction
C)   increases surface area for cleaning, warming, and moisturizing the air
D)   increases turbulence and surface area for cleaning, warming and moisturizing the airE) A) and D)
F) None of the above

Question 12

Which of the following is a passageway for both air and food?

Accepted Answer

A)   trachea
B)   larynx
C)   pharynx
D)   bronchus
E)   esophagusF) A) and B)
G) C) and D)

Question 13

Which of the following molecules acts as a buffer during the chloride shift?

Accepted Answer

A)   carbon dioxide
B)   hemoglobin
C)   carbonic anhydrase
D)   water
E)   bicarbonate ionF) A) and D)
G) A) and B)

Question 14

Gas exchange between the air and the blood takes place in the __________.

Accepted Answer

The answer of Gas exchange between the air and the...

Question 15

-What does "A" represent on the diagram?

Accepted Answer

A)   larynx
B)   lungs
C)   trachea
D)   pharynx
E)   bronchiF) B) and E)
G) A) and B)

Question 16

Whose law explains why a gas will move from one area to another area?

Accepted Answer

A)   Dalton's Law
B)   Henry's Law
C)   Charles Law
D)   Boyle's LawE) A) and D)
F) All of the above

Question 17

During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv)  will

Accepted Answer

A)   decrease below atmospheric pressure (P
B)  , causing air to move out of his lungs.
B)   become greater than atmospheric pressure (P
B)  , causing air to move into his lungs.
C)   decrease below atmospheric pressure (P
B)  , causing air to move into his lungs.
D)   become greater than atmospheric pressure (P
B)  , causing air to move out of his lungs.
E)   does not change.F) A) and B)
G) A) and E)

Question 18

The chemosensitive area of the brain is located in the

Accepted Answer

A)   pons.
B)   cerebral peduncles.
C)   cerebellum.
D)   hypothalamus.
E)   medulla oblongata.F) A) and D)
G) C) and E)

Question 19

Which of the following is NOT a function of the respiratory system?

Accepted Answer

A)   olfaction
B)   taste
C)   production of chemical mediators
D)   voice production
E)   regulation of blood pHF) C) and D)
G) A) and D)

Question 20

The pontine respiratory neurons

Accepted Answer

A)   are located in the medulla oblongata in the brain.
B)   are active only during inspiration.
C)   are active only during expiration.
D)   play a role in switching between inspiration and expiration.
E)   is essential for respiratory rhythm.F) A) and D)
G) A) and E)

Exam 23: Respiratory System

-Which of the patients above has a severe case of "test anxiety"?

Correct AnswerverifiedShow Answer

Gas exchange between the air and the blood takes place in the __________.

Correct AnswerverifiedShow Answer

What is the function of the nasal conchae?

Correct AnswerverifiedShow Answer

Which of the following molecules acts as a buffer during the chloride shift?

Correct AnswerverifiedShow Answer

Which of the following is a passageway for both air and food?

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of the respiratory system?

Correct AnswerverifiedShow Answer

Whose law explains why a gas will move from one area to another area?

Correct AnswerverifiedShow Answer

The chemosensitive area of the brain is located in the

Correct AnswerverifiedShow Answer

During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv) will

Correct AnswerverifiedShow Answer

Oxygen diffusion from the alveolus to the pulmonary capillary occurs because

Correct AnswerverifiedShow Answer

Match the term with the appropriate description or definition. -tidal volume "Enter the letter of the correct description below"

Correct AnswerverifiedShow Answer

-What does "A" represent on the diagram?

Correct AnswerverifiedShow Answer

The highest level of exercise that can be performed without causing a significant change in blood pH is called the

Correct AnswerverifiedShow Answer

-What does "B" represent on the diagram?

Correct AnswerverifiedShow Answer

When these ligaments or folds come together, they prevent food from entering the lower respiratory tract.

Correct AnswerverifiedShow Answer

-What does "E" represent on the diagram?

Correct AnswerverifiedShow Answer

Whenever people cry, their nose runs. This is because the _____ drain tears into the nose.

Correct AnswerverifiedShow Answer

The pontine respiratory neurons

Correct AnswerverifiedShow Answer

Which of the following statements regarding the lungs is correct?

Correct AnswerverifiedShow Answer

Why is fetal hemoglobin very efficient at picking up oxygen?

Correct AnswerverifiedShow Answer

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During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (P_alv) will

Correct Answer
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