7-2. COMPONENTS AND SUBDIVISIONS OF THE HUMAN RESPIRATORY SYSTEM
7-2. COMPONENTS AND SUBDIVISIONS OF THE HUMAN RESPIRATORY SYSTEM
See figure 7-1
for an illustration of the human respiratory system.
a. Components. The components of the human respiratory system
consist of air passageways and two lungs. Air moves from the outside of the body into tiny
sacs in the lungs called alveoli (pronounced al-VE-oh-lie).
b. Main Subdivisions. The main subdivisions of the respiratory
system may be identified by their relationship to the voice box or larynx. Thus, the main
subdivisions are as listed in table 7-1.
Distribute air to the alveoli of the lung where the actual external
respiration takes place
Table 7-1. The main subdivisions of the respiratory system.
Primary Content Providers: The U. S. Army, The
U.S. Navy
Ancillary Content and Online Version: David L. Heiserman
Publisher: SweetHaven Publishing Services
