Question 1

A SCUBA diver has been deep underwater and suddenly rises to the surface too fast.Why does the diver get decompression sickness?

Accepted Answer

A) Pressure decreases and carbon dioxide rushes into cells. 
B) Pressure changes too fast and the carbon dioxide in the blood forms bubbles. 
C) Pressure decreases too fast and nitrogen gas in the blood forms bubbles. 
D) The gas in the SCUBA tank had too much pressure and rapid ascent forces too much air into the blood. 
E) Pressure increases too fast and too much oxygen enters the blood and forms bubbles.

Question 2

Which respiratory organ has a cardiac notch?

Accepted Answer

A) right lung 
B) left lung 
C) right primary bronchus 
D) left primary bronchus 
E) diaphragm

Question 3

Which of the following muscles might be recruited to increase inspired volume?

Accepted Answer

A) sternocleidomastoid 
B) pectoralis minor 
C) scalenes 
D) serratus anterior 
E) All of the answers are correct.

Question 4

The volume of air moved in a single respiratory cycle is called

Accepted Answer

A) alveolar minute volume. 
B) vital capacity. 
C) respiratory volume. 
D) tidal volume. 
E) lung volume.

Question 5

The technical term for quiet breathing is

Accepted Answer

A) shallow breathing. 
B) hypoventilation. 
C) passive. 
D) eupnea. 
E) costal breathing.

Question 6

The following is a list of some airways.What is the order in which air passes through them?
1)secondary bronchus
2)bronchioles
3)alveolar ducts
4)primary bronchus
5)respiratory bronchiole
6)alveoli
7)terminal bronchiole

Accepted Answer

A) 4,1,2,7,5,3,6 
B) 4,1,2,5,7,3,6 
C) 1,4,2,5,7,3,6 
D) 1,4,2,7,5,3,6 
E) 2,4,1,7,5,3,6

Question 7

If the volume of the lungs increases,what happens to the air pressure inside the lungs?

Accepted Answer

A) It decreases. 
B) It increases and possibly damages the lungs. 
C) It increases twice the amount of the increase in volume. 
D) It remains constant. 
E) It increases.

Question 8

The respiratory membrane of the gas exchange surfaces consists of

Accepted Answer

A) pseudostratified ciliated columnar epithelium. 
B) moist cuboidal epithelium. 
C) simple squamous epithelium. 
D) ciliated squamous epithelium. 
E) surfactant cells.

Question 9

The ________ extends from the sixth cervical vertebra to the fifth thoracic vertebra.

Accepted Answer

A) trachea 
B) primary bronchi 
C) secondary bronchi 
D) tertiary bronchi 
E) lungs

Question 10

Pulmonary ventilation refers to the

Accepted Answer

A) movement of air into and out of the lungs. 
B) movement of dissolved gases from the alveoli to the blood. 
C) movement of dissolved gases from the blood to the interstitial space. 
D) movement of dissolved gases from the interstitial space to the cells. 
E) utilization of oxygen.

Question 11

The nasal cavity is separated from the oral cavity by the

Accepted Answer

A) hard palate. 
B) soft palate. 
C) cribriform plate. 
D) internal nares. 
E) pharyngeal septum.

Question 12

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

Accepted Answer

A) less than the pressure in the atmosphere. 
B) greater than the pressure in the atmosphere. 
C) equal to the pressure in the atmosphere. 
D) greater than intraalveolar pressure. 
E) less than intrapulmonic pressure.

Question 13

The respiratory epithelium of the conducting airways consists of

Accepted Answer

A) pseudostratified ciliated columnar epithelium. 
B) moist cuboidal epithelium. 
C) simple squamous epithelium. 
D) ciliated squamous epithelium. 
E) stratified squamous epithelium.

Exam 23: The Respiratory System