It is lined with ciliated cells to push particles out, and cartilage rings to guard it against pressure when breathing.

It has 2 portions: the external and internal

It provides an entrance for air in which air is filtered by CILIA inside the nostrils.

They are the hairlike tubes that connect to the alveoli.

Are tiny air sacs found at the ends of each of the bronchioles

It is the tubular passageway for air into the lungs. 

It houses the vocal chords and the different muscles used in producing sounds. 

Two branching tubes that connect the trachea to the lungs.

The external portion is supported by a framework of bone and cartilage covered with skin and lined with mucous membrane

voicebox

the intake if air into the lungs through expansion of chest volume

is the common passageway for air and food and it provides a resonating chamber for speech sound

The two organs that extract oxygen from the inhaled air and expel carbon dioxide into the exhaled air

uppermost portion of the pharynx

the expulsion of air from the lungs through contraction of chest volume

This is the main and primary organ of the respiratory system

Windpipe

This process involves muscular movements of diaphragm and the rib cage. 

The finer subdivisions of the bronchi.

are 2 or more alveoli that share a common opening

are equipped with tiny, hair-like structures called cilia. Cilia help move mucus out of your lungs, keeping the ______ clean and healthy.

are composed of the bronchi, bronchioles, alveoli, and their supporting tissue.

This is where the primary exchange of gases occurs.

middle portion of the pharynx

lowermost portion of the pharynx

Interior area of the nose; which filters incoming air, removing dust and particles; warms and humidifies the air before it reaches the lungs.