Question 1

Gas exchange occurs in all of the following EXCEPT:

Accepted Answer

A)  alveolar ducts.
B)  terminal bronchioles.
C)  respiratory bronchioles.
D)  alveolar sacs.

Question 2

The lungs are held to the thorax wall by the smooth muscles of the lungs.

Accepted Answer

A) True 
 B)False

Question 3

The triangular depression in the medial surface of each lung,where blood vessels and the primary bronchi enter,is the:

Accepted Answer

A)  lobule.
B)  base.
C)  hilum.
D)  apex.

Question 4

Air moves out of the lungs when the pressure inside the lungs is:

Accepted Answer

A)  less than atmospheric pressure.
B)  less than intrapleural pressure.
C)  equal to atmospheric pressure.
D)  greater than atmospheric pressure.

Question 5

Which of the following reduces alveolar surface tension?

Accepted Answer

A)  mucus
B)  gas
C)  water
D)  surfactant

Question 6

The volume that remains in the lungs after a forced expiration is the:

Accepted Answer

A)  dead space volume.
B)  functional residual capacity.
C)  residual volume.
D)  vital capacity.

Question 7

Terminal bronchioles,part of the conducting zone,give rise to respiratory bronchioles,which are part of the respiratory zone.

Accepted Answer

A) True 
 B)False

Question 8

Each lung is situated within a subcavity of the thoracic cavity known as the:

Accepted Answer

A)  peritoneal cavity.
B)  abdominopelvic cavity.
C)  pericardial cavity.
D)  pleural cavity.

Question 9

Explain how smoking impairs the protective features of the epithelium of the respiratory tract.

Accepted Answer

Chemicals in cigarette smoke increase mu...

Exam 21: The Respiratory System

Each lung is situated within a subcavity of the thoracic cavity known as the:

Correct Answer
verified

Explain how smoking impairs the protective features of the epithelium of the respiratory tract.

Correct Answer
verified
Chemicals in cigarette smoke increase mu...
View Answer

The volume that remains in the lungs after a forced expiration is the:

Correct Answer
verified

The lungs are held to the thorax wall by the smooth muscles of the lungs.

Correct Answer
verified

The triangular depression in the medial surface of each lung,where blood vessels and the primary bronchi enter,is the:

Correct Answer
verified

Air moves out of the lungs when the pressure inside the lungs is:

Correct Answer
verified

Terminal bronchioles,part of the conducting zone,give rise to respiratory bronchioles,which are part of the respiratory zone.

Correct Answer
verified

Gas exchange occurs in all of the following EXCEPT:

Correct Answer
verified

Which of the following reduces alveolar surface tension?

Correct Answer
verified

Exam 21: The Respiratory System

Each lung is situated within a subcavity of the thoracic cavity known as the:

Correct AnswerverifiedShow Answer

Explain how smoking impairs the protective features of the epithelium of the respiratory tract.

Correct AnswerverifiedChemicals in cigarette smoke increase mu...View AnswerShow Answer

The volume that remains in the lungs after a forced expiration is the:

Correct AnswerverifiedShow Answer

The lungs are held to the thorax wall by the smooth muscles of the lungs.

Correct AnswerverifiedShow Answer

The triangular depression in the medial surface of each lung,where blood vessels and the primary bronchi enter,is the:

Correct AnswerverifiedShow Answer

Air moves out of the lungs when the pressure inside the lungs is:

Correct AnswerverifiedShow Answer

Terminal bronchioles,part of the conducting zone,give rise to respiratory bronchioles,which are part of the respiratory zone.

Correct AnswerverifiedShow Answer

Gas exchange occurs in all of the following EXCEPT:

Correct AnswerverifiedShow Answer

Which of the following reduces alveolar surface tension?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
Chemicals in cigarette smoke increase mu...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified