1) Air entering the body filtered, warmed, and humidified by : 1200347

1) Air entering the body filtered, warmed, and humidified by : 1200347.

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

A) upper (conducting) portion of the respiratory tract.

B) lower (respiratory) portion of the respiratory tract.

C) lungs.

D) alveoli.

E) bronchioles.

2) The respiratory mucosa is made up of ________.

A) dense irregular connective tissue

B) squamous epithelium

C) ciliated cuboidal epithelium

D) ciliated columnar epithelium

E) dense regular connective tissue

3) The lining of the trachea is

A) simple squamous epithelium.

B) ciliated cuboidal epithelium.

C) ciliated columnar epithelium.

D) transitional epithelium.

E) connective tissue.

4) Functions of the respiratory system include

A) protecting respiratory surfaces from dehydration, and temperature changes.

B) producing leukocytes.

C) generating neurotransmitters.

D) providing erythrocytes.

E) melanin synthesis and utilization.

5) Microorganisms removed from incoming air by the mucus of the respiratory tract are ultimately exposed to

A) toxins in the mucus.

B) the cilia.

C) stomach acids and enzymes.

D) a lack of nutrients.

E) erythrocytes.

6) The nasal cavity opens into the nasopharynx at the

A) internal nares.

B) external nares.

C) vestibules.

D) turbinates.

E) palates.

7) The portion of the nasal cavity contained within the flexible tissues of the nose is the

A) nasopharynx.

B) nasal vestibule.

C) internal chamber.

D) glottis.

E) nasal septum.

8) Which of the following forms much of the anterior and lateral surfaces of the larynx, and often contains an “Adam’s apple”?

A) arytenoid cartilage

B) thyroid cartilage

C) cuneiform cartilage

D) corniculate cartilage

E) cricoid cartilage

9) A chamber shared by the respiratory and digestive systems is the

A) larynx.

B) glottis.

C) vestibule.

D) pharynx.

E) trachea.

10) Which structure extends behind the hard palate and underlies the nasopharynx?

A) larynx

B) vestibule

C) soft palate

D) external nares

E) internal nares



1) Air entering the body filtered, warmed, and humidified by : 1200347

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