Respiratory System Guided Notes

Notes - The Respiratory system
The major function of the respiratory system is to supply the body with __________
and dispose of ___________________
Respiratory Anatomy
I. The Respiratory system consists of 2 parts. Give the structures in and function of each
A. respiratory zone (organs):
B. conducting zone (passageways):
II. Nose
A. List the 5 functions of the nose
B. Explain why you can get a runny nose on a cold day.
C. What is the function of the conchae?
D. What separates the nasal cavity from the oral cavity?
E. What are the 3 functions of the paranasal sinuses?
III. Pharynx
A. The pharynx serves as a common passageway for ________ and _________.
B. The nasopharynx serves only as a passageway for ________________ . When you
swallow, the _______________________ & ____________________ rise upward to
prevent food/fluid from entering it. The oropharynx & the laryngopharynx carry
________________, _____________ & _________. Food will be directed posteriorly to
the ____________________ while air goes _____________________ to the larynx.
C. List the 3 sets of tonsils.
IV. Larynx
A. The 3 functions of the larynx are
B. Your epiglottis is the ______ tracheal cartilage. When air is flowing into the
_________, the free edge projects ___________________. During swallowing, the
________________ is pulled upward and the ________________is
tipped__________________________________ to cover the laryngeal inlet to route
_______________________ into the ______________________.
C. A cough reflex is initiated if _____________________________________________
enters the larynx. This reflex does not work while we are unconscious so it is not a good
idea to______________________________________________________________.
V. Trachea
A. What is the function of the ciliated mucosa in the trachea?
B. Smoking diminishes _________________________________ so coughing is the
only means of preventing mucus accumulation in the lungs. Smokers should
never be given _________________________________________________.
C. The tracheal wall is reinforced internally by _____________________________ so
that it is flexible (open part of C) but does not collapse (closed part of C)
D. Purpose of the Heimlich maneuver:
E. Define tracheostomy:
VI. Primary Bronchi
Which bronchi do inhaled foreign objects usually lodge in and why?
VII. Lungs
A. The two lungs are different in shape and size. The left lung has
only ______ lobes to give heart some room while the right lung has _______ lobes.
B. The lungs weigh about _________________.
C. The _________________ pleura line the thoracic cavity wall while the __________pleura
line the external lung surface.
D. The function of the pleural/serous fluid (in pleural cavity) is to
VIII. Respiratory zone structures
A. The respiratory zone is the only site of ______________________.
B. The alveolar walls are composed of a single layer of_______________________
that is much thinner than a ____________________________. The respiratory
membrane has ___________ on one side and ___________________ on the
other side.
C. Gas exchanges occur through the process of ___________________________. The
approximate surface area available for a healthy person is __________ square meters.
D. Efficient gas exchange requires a moist membrane so ___________________
cells secrete a __________________________________ that coats the
End of Quiz #1 - Know your diagrams also