Respiratory Pathway

Nose

• Structure- externally visible
• Function- filter, moisten, and"heat" the air

Pharynx

• Structure- 13 cm. long, "throat", continuous with nose
• Function- passageway for food and air

Larynx

• Structure- voice box
• Function- routes food and air into proper channels

Trachea

• Structure- rigid, reinforced with C-shaped rings of cartilage
• Function- windpipe, allows food and air to pass through

Bronchi

• Structure- formed by the division of ghe trachea
• Function- direct routes for air sacs

Lungs

• Structure- fairly large organs, occupynentire thoracic cavity except most central area
• Function- breathing