Bio 112 Chapter 16 Practice Test - Respiratory System

1. The diaphragm contracts during which phase of breathing?

A. inspiration

B. expiration

C. both

D. the diaphragm does not contract

2. Which is a cartilage found in the larynx?

A. glottis

B. cricoid

C. trachea

D. all of the above

3. Which organ contains the vocal folds?

A. pharynx

B. larynx

C. esophagus

D. trachea

4. During inspiration, air flows from the trachea directly into

A. alveoli

B. bronchioles

C. bronchi

D. the larynx

5. How is most carbon dioxide transported in blood?

A. bound to hemoglobin

B. dissolved in plasma

C. as  bicarbonate ions

D. as carbonic acid

6. The respiratory center is located in the

A. cerebrum

B. brain stem

C. hypothalamus

D. all of the above

7. Which division of the pharynx is not part of the respiratory and digestive tract?

A. oropharynx

B. laryngopharynx

C. nasopharynx

D. all parts of the pharynx are part of the respiratory and digestive tracts

8. In what part of the bronchial tree does the exchange of oxygen and carbon dioxide occur across a membrane?

A. bronchioles

B. alveoli

C. primary bronchus

D. both A and B

9. Which of the following would not be found in the substance of the lungs?

A. blood vessels

B. secondary bronchi

C. nerves

D. connective tissue

E. all are found in the substance of the lungs

10. The right lung is divided into three lobes.

A. true

B. false

11. Which of the following would allow the highest pitched sound to be produced?

A. thick, relaxed vocal cords

B. thin, relaxed vocal cords

C. thick, stretched vocal cords

D. thin, stretched vocal cords