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The Respiratory System (Ch. 22)
N/A
34
Anatomy
Undergraduate 2
11/14/2011

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Cards

Term
What are the two main divisions of the respiratory system?
Definition
Conducting zone and the respiratory zone
Term
What is the function of the respiratory zone?
Definition
sites of gas exchange; anywhere alveoli are present in the lungs
Term
What is the conducting zone?
Definition
transports air to sites of gas exchange; filters, humidifies, and warms incoming air
Term
What is another name for the pharynx?
Definition
throat
Term
What is another name for the larynx?
Definition
voice box
Term
What are the three components of the nose?
Definition
Nasal bones, maxilla bones, and cartilages
Term
What is the only external part of the respiratory system?
Definition
the nose
Term
What is another name for the nostrils?
Definition
external nares
Term
What is the purpose of the nasal conchae?
Definition
to increase air turbulence in the nasal cavity
Term
What are the two mucosa present in the nasal cavity?
Definition
oflactory and respiratory
Term
Which mucosa is made of pseudostratified ciliated columnar epithelium?
Definition
respiratory
Term
What are the four paranasal sinuses?
Definition
frontal, ethmoid, sphenoid, and maxillary
Term
Identify:
funnel-shaped passage that connects the nasal cavity and mouth to the larynx and esophagus
Definition
pharynx
Term
What are the three divisions of the pharynx?
Definition
nasopharynx, oropharynx, and laryngopharynx
Term
What is another name for the pharyngotympanic tube?
Definition
eustacian tube
Term
Define tonsil
Definition
lymphoid organs that destroy pathogens entering the pharynx
Term
What are the three tonsils?
Definition
pharyngeal (singular), palatine, and lingual (paired)
Term
What are the upper and lower boundaries of the larynx?
Definition
superior: hyoid
inferior: trachea (continuous)
Term
What are the three functions of the larynx?
Definition
vocalizations, open airway, and routing food and air to the proper passageway
Term
What is the glottis composed of?
Definition
vocal folds and the hole formed by their separation
Term
What is the purpose of the hyaline cartilage of the trachea?
Definition
to prevent collapse and esophageal distension
Term
Where does the trachea end?
Definition
at the carina
Term
What muscle allows the esophagus to contract during coughing/sneezing?
Definition
trachealis muscle
Term
What are the glands located in the trachea?
Definition
seromucous glands
Term
Which lungs has three lobes?
Definition
right lung
Term
What changes (3) as the conducting tubes of the bronchial tree get smaller?
Definition
connective tissue, epithelium, and smooth muscle
Term
Define alveoli sacs
Definition
sacs of simple squamous epithelium (type I) covered with capillaries; sites of gas exchange
Term
What is the branching order of structures in the lung?
Definition
bronchiole, terminal bronchiole, respiratory bronchiole, alveloar ducts, alveolar sacs
Term
There is no mucous in ______
Definition
bronchioles
Term
Define hilum
Definition
AKA hilus; indentation on the mediastinal surface of the lung through which the root passes
Term
Define the root
Definition
blood vessels, lymph vessels, bronchi, and nerves that pass in and out of the lung
Term
What are the three thoracic compartments?
Definition
right lateral, left lateral, and central mediastinal
Term
What is the purpose of compartmentalization?
Definition
prevents interference of organs and spread of infection between organs
Term
What two primary brain regions that control breathing?
Definition
pons and the medulla
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