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RESPIRATORY SYSTEM MULTIPLE CHOICE QUESTIONS

1.      It is an empty tube that serves as the passage way of air into the lungs.
a.      trachea                                    c.  bronchioles
b.      bronchi                                    d.  alveoli
2.      Are the two branching tubes that connects the trachea to the lungs.
a.      trachea                                    c.  bronchioles
b.      bronchi                                    d.  alveoli
3.      Are the hairlike tubes that connect to the alveoli.
a.      trachea                                    c.  bronchioles
b.      bronchi                                    d.  alveoli
4.      Are the airsacs that allow gas exchange in the lungs.
a.      trachea                                    c.  bronchioles
b.      bronchi                                    d.  alveoli
5.      What happens to the diaphragm when you inhale?
a.      expand                                                c.  relaxes
b.      contracts                                 d.  increases in size
6.      What is the function of hair in the nose?
a.      To help fight infection
b.      To keep water out of the lungs
c.       To help gas exchange in the lungs
d.      To cause us to sneeze
7.      It stops the food in going down the lungs.
a.      Bronchi                                    c.  epiglottis
b.      Esophagus                               d.  alveoli
8.       It is where the exchange of gas occurs.
a.      Bronchi                                    c.  epiglottis
b.      Esophagus                               d.  alveoli
9.      It is the body’s breathing system.
a.      Digestive system
b.      Respiratory system
c.       Circulatory system
d.      Nervous system
10.   What type of blood vessel surrounds the alveoli?
a.      Arteries                                   c.  capillaries
b.      Veins                                       d.  nerve endings

11.  Which organ is made up of air-carrying tubes and tiny sacs?
a.      Brain                                       c.  stomach
b.      Lungs                                       d.  diaphragm
12.  It protects the lungs from outside harm.
a.      Cartilage                                 c. rib cage
b.      Tiny sacs                                  d. diaphragm Top of Form
13.  Which of the following is NOT part of the breathing system?
a.      Trachea                                   c.  esophagus
b.      Bronchi                                    d.  nose
14.  Which of the following is NOT a disease of respiratory system?
a.      Chicken pox                             c.  cancer
b.      Pneumonia                              d.  asthma
15.  Which of the following provide the greatest surface area for gas exchange?
a.      alveolar sacs                           c.  respiratory bronchioles
b.      alveoli                                     d.  alveolar ducts
16.  The exchange of oxygen and carbon dioxide that takes place in the lungs is called:
a.      Inhalation                                c.  external respiration
b.      Exhalation                               d.  internal respiration
17.  The name of small hairs that filters out particles of dirt that enter the nostrils.
a.      Cilia                                         c. glottis
b.      Vocal cord                               d. mucus membrane
18.  The medical term meaning “not breathing” is
a.      Tachypnea                               c.  Dyspnea
b.      Apnea                                      d. Eupnea
19.  Which statement best explains the function of the respiratory system?
a.      Carries oxygen and nutrients to the cells of the body.
b.      Carries waste materials away from the cells of the body.
c.       Draws oxygen into the body and expels carbon dioxide from the body.
d.      All of the above.
20.  In humans, which structure prevents food from entering the trachea?
a.      Alveolus                                   c.  cartilage ring
b.      Epiglottis                                 d.  mucus membrane



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