Question 1

Oxygen is transported in blood most efficiently by

Accepted Answer

A)   being dissolved in the plasma.
B)   chemical conversion to water.
C)   combining with hemoglobin.
D)   combining with carbon dioxide to form bicarbonate ions.
E)   a free oxygen ion or radical.F) A) and B)
G) B) and D)

Question 2

You should treat the common cold with antibiotics to shorten the duration of symptoms.

Accepted Answer

A) True 
 B)False

Question 3

Sarah comes home from school with a horrible pressure behind her eyes.Her nose is running and she has a headache.She recently had a cold.What is Sarah most likely suffering from?

Accepted Answer

A)   otitis media
B)   sinusitis
C)   bronchitis
D)   asthma
E)   pneumoniaF) None of the above
G) All of the above

Question 4

In humans,the lungs are caused to inflate when the

Accepted Answer

A)   rib muscles contract.
B)   diaphragm muscle contracts.
C)   rib muscles and diaphragm contract.
D)   diaphragm relaxes.
E)   rib muscles and diaphragm relax.F) A) and B)
G) B) and D)

Question 5

Which of the following treatments can cure lung cancer?

Accepted Answer

A)   pneumonectomy
B)   steroids
C)   antibiotics
D)   mucous-thinning drugs
E)   tracheotomyF) A) and B)
G) A) and C)

Question 6

The breathing rate is controlled by chemoreceptors that detect

Accepted Answer

A)   levels of oxygen in the alveolar air space.
B)   levels of oxygen in the blood.
C)   levels of carbon dioxide in the alveolar air space.
D)   levels of carbon dioxide in the blood.
E)   level of stretching of the rib muscles and diaphragm.F) None of the above
G) A) and B)

Question 7

Aortic and carotid bodies are

Accepted Answer

A)   the same as the SA and AV nodes.
B)   types of valves in the heart.
C)   present in the lungs.
D)   sensitive to changes in CO2 and H+ in the blood.
E)   sensitive to oxygen changes.F) A) and E)
G) A) and C)

Question 8

Which part of the respiratory system will have the least amount of cartilage and the thinnest walls?

Accepted Answer

A)   larynx
B)   trachea
C)   bronchi
D)   bronchioles
E)   pharynxF) A) and B)
G) C) and E)

Question 9

The entrance and exit of air into and out of the lungs is called

Accepted Answer

A)   ventilation.
B)   external respiration.
C)   internal respiration.
D)   cellular respiration.
E)   inspiration.F) A) and D)
G) B) and C) A

Question 10

The majority of cases of lung cancer are associated with smoking.

Accepted Answer

A) True 
 B)False

Question 11

Cystic fibrosis has a genetic cause.

Accepted Answer

A) True 
 B)False

Question 12

The Adam's apple is actually a part of the

Accepted Answer

A)   pharynx.
B)   larynx.
C)   glottis.
D)   vocal cords.
E)   trachea.F) A) and B)
G) B) and E)

Question 13

Most respiratory infections are caused by viruses and can successfully be treated with antibiotics.

Accepted Answer

A) True 
 B)False

Question 14

What happens to the blood pH if a person hyperventilates?

Accepted Answer

A)   the pH will increase
B)   the pH will remain the same
C)   the pH will decrease
D)   the pH will initially increase but then dramatically decrease
E)   the pH will initially decrease but then dramatically increaseF) C) and D)
G) A) and B)

Question 15

Which of the following statements does not correctly describe air movement along the respiratory tract?

Accepted Answer

A)   Cilia and hairs in the nose help to screen out foreign particles in the air.
B)   Food and air both enter the pharynx, presenting a potential danger to respiration.
C)   Air reaching the lungs has been warmed to body temperature by passage through the nose and upper respiratory system.
D)   The glottis is the passageway through the larynx by which air enters the trachea.
E)   The bronchi serve as passageways into the trachea.F) All of the above
G) A) and E)

Question 16

Which of the following symptoms would not be typical of otitis media?

Accepted Answer

A)   pain
B)   sense of fullness in the ear
C)   hearing loss
D)   headache
E)   dizzinessF) A) and B)
G) A) and E) D

Question 17

Why does the surface of the lungs need to be covered with pleura?

Accepted Answer

A)   to allow the exchange of oxygen within the alveoli
B)   to allow the exchange of carbon dioxide within the alveoli
C)   to produce the muscular contractions that expand the lungs
D)   to enable the lungs to slide past the internal chest wall and diaphragm
E)   to prevent the alveoli from collapsing due to pressureF) B) and C)
G) A) and C)

Question 18

The vocal cords are found in the

Accepted Answer

A)   bronchi.
B)   nose.
C)   larynx.
D)   lungs.
E)   pharynx.F) All of the above
G) A) and E) C

Question 19

A short while after a person has died,a "gasp" of air may occur as the lungs collapse.This flow would represent the

Accepted Answer

A)   tidal volume.
B)   expiratory reserve volume.
C)   total lung volume.
D)   vital capacity.
E)   residual volume.F) All of the above
G) A) and B)

Question 20

What keeps the alveoli open so that gas exchange can take place?

Accepted Answer

A)   rings of cartilage
B)   surfactant
C)   smooth muscle
D)   mucous
E)   airF) C) and D)
G) D) and E)

Exam 15: Respiratory System

Oxygen is transported in blood most efficiently by

Correct AnswerverifiedShow Answer

You should treat the common cold with antibiotics to shorten the duration of symptoms.

Correct AnswerverifiedShow Answer

Sarah comes home from school with a horrible pressure behind her eyes.Her nose is running and she has a headache.She recently had a cold.What is Sarah most likely suffering from?

Correct AnswerverifiedShow Answer

In humans,the lungs are caused to inflate when the

Correct AnswerverifiedShow Answer

Which of the following treatments can cure lung cancer?

Correct AnswerverifiedShow Answer

The breathing rate is controlled by chemoreceptors that detect

Correct AnswerverifiedShow Answer

Aortic and carotid bodies are

Correct AnswerverifiedShow Answer

Which part of the respiratory system will have the least amount of cartilage and the thinnest walls?

Correct AnswerverifiedShow Answer

The entrance and exit of air into and out of the lungs is called

Correct AnswerverifiedA

The majority of cases of lung cancer are associated with smoking.

Correct AnswerverifiedShow Answer

Cystic fibrosis has a genetic cause.

Correct AnswerverifiedShow Answer

The Adam's apple is actually a part of the

Correct AnswerverifiedShow Answer

Most respiratory infections are caused by viruses and can successfully be treated with antibiotics.

Correct AnswerverifiedShow Answer

What happens to the blood pH if a person hyperventilates?

Correct AnswerverifiedShow Answer

Which of the following statements does not correctly describe air movement along the respiratory tract?

Correct AnswerverifiedShow Answer

Which of the following symptoms would not be typical of otitis media?

Correct AnswerverifiedD

Why does the surface of the lungs need to be covered with pleura?

Correct AnswerverifiedShow Answer

The vocal cords are found in the

Correct AnswerverifiedC

A short while after a person has died,a "gasp" of air may occur as the lungs collapse.This flow would represent the

Correct AnswerverifiedShow Answer

What keeps the alveoli open so that gas exchange can take place?

Correct AnswerverifiedShow Answer

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A

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D

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C

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