Definitions

Question 1

Lymphatic tissue in the nasopharynx; pharyngeal tonsils:

Answer 1

adenoids

Question 2

Air sac in the lung:

Answer 2

alveolus

Question 3

Tip or uppermost portion of the lung:

Answer 3

apex of the lung

Question 4

The lower portion of the lung:

Answer 4

base of lung

Question 5

The branch of the trachea (windpipe) that is a passageway into the lung; bronchial tube:

Answer 5

bronchus

Question 6

Gas produced by body cells when oxygen and carbon atoms from food combine; exhaled through the lung:

Answer 6

carbon dioxide

Question 7

Thin hairs attached to mucous membrane epithelium lining the respiratory tract:

Answer 7

cilia

Question 8

Muscle separating the chest and abdomen; contracts to pull air into lungs; relaxes to push air out:

Answer 8

diaphragm

Question 9

Midline region where the bronchi, blood vessels, and nerves enter and exit the lungs:

Answer 9

hilium

Question 10

Breathing in (inhalation):

Answer 10

inspiration

Question 11

Voice box; contains the vocal cords:

Answer 11

larynx

Question 12

Division of a lung:

Answer 12

lobe

Question 13

The region between lungs in the chest cavity; contains the trachea, heart, lymph nodes, aorta, esophagus, and bronchial tubesL

Answer 13

mediastinum

Question 14

Openings through the nose carrying air into the nasal cavities:

Answer 14

nares