The nasal cavity, pharynx, and larynx constitute the ________ portion of the airway.

• conducting

• respiratory

• exchange

• lower

The respiratory epithelium of the conducting airways consists mostly of

• stratified squamous epithelium.

• pseudostratified ciliated columnar epithelium.

• moist cuboidal epithelium.

• simple squamous epithelium.

The larynx, trachea, bronchi, and bronchioles all make up the

• upper respiratory tract.

• lower respiratory tract.

• internal respiratory tract.

• respiratory mucosa.

Air entering the body is filtered, warmed, and humidified by the

• upper respiratory tract.

• lower respiratory tract.

• lungs

• bronchioles.

The entire array of protective mechanisms in the respiratory system is called the

• macrophage complex.

• mucus escalator.

• respiratory defense system.

• acquired respiratory defense.

The nasopharynx transitions into the oropharynx at the level of the

• hard palate.

• soft palate.

• tongue.

• internal nares.

The ________ is shared by the respiratory and digestive systems.

• trachea

• pharynx

• esophagus

• larynx

The nasal cavity is separated from the oral cavity by the

• hard palate.

• soft palate.

• internal nares.

• nasal septum.

The largest cartilage of the larynx is the ________ cartilage.

• thyroid

• cricoid

• epiglottis

• glottis

A pair of ligaments covered by laryngeal epithelium that function in sound production are the

• intrinsic laryngeal muscles.

• ventricular folds.

• vocal folds

• extrinsic ligaments.