Respiratory System

Front

What is the only externally visible part of the respiratory system?

Back

Nose

Front

What is the period of breathing when air enters the lungs called?

Back

Inspiration

Front

What type of mucosa lines the perinasal sinuses?

Back

Respiratory-type mucosa

Front

What is the term for the drawing in of breath?

Back

Inspiration

Front

Where does gas exchange occur in the respiratory system?

Back

Alveoli

Front

What is the process of breathing out air called?

Back

Expiration

Front

What structure connects the throat to the lungs?

Back

Trachea

Front

What are the small air sacs in the lungs called?

Back

Alveoli

Front

What is the primary muscle involved in breathing?

Back

Diaphragm

Front

What is the function of the nasal cavity in the respiratory system?

Back

To filter, warm, and humidify the air