Ch. 23 Respiratory System
What pressure will be present in the space labeled "4"
intrapleural pressure
Inhaling through the nostrils is preferred over the mouth because
it allows better conditioning of the inhaled air
The auditory tubes open into the
nasopharynx.
Identify the structure labeled "7." (Figure 23-1)
oropharynx
Identify the structure labeled "5."
pharyngeal tonsil
Which of the following organs is not part of the lower respiratory system?
pharynx
What is the function of the structure labeled "8"? (Figure 23-1)
prevents food from entering the larynx
Tuberculosis results from what bacteria?
Mycobacterium tuberculosis
Primary bronchi are to ________ as secondary bronchi are to ________.
main bronchi; lobar bronchi
During a choking episode, most foreign objects are lodged in the ________ bronchus due to its larger diameter and steeper angle.
Right Primary
Air flows between nasal conchae through the
Superior, Middle, and Inferior Nasal Meatuses
The term hypercapnia refers to
elevated PCO2
During quiet breathing,
inspiration involves muscular contractions and expiration is passive
The thyroid cartilage is also called the
laryngeal prominence and Adam's apple.
Which respiratory organ has a cardiac notch?
left lung
The respiratory epithelium of the conducting airways consists of
pseudostratified ciliated columnar epithelium.
Harry suffers from cystic fibrosis and has severe breathing difficulties. His problems result from
thick secretions that are difficult to transport
The largest cartilage of the larynx is the ________ cartilage
thyroid