Module 4 - L4 Lung Structure and the Respiratory Tract

Question 1

alveoli

Answer 1

small air sacs found deep within the lungs

Question 2

bronchi

Answer 2

tubular branches that the trachea divides into

Question 3

bronchioles

Answer 3

thin branches that each bronchus narrows into

Question 4

cilia

Answer 4

projections that help sweep dirt and foreign material toward the throat for elimination

Question 5

epiglottis

Answer 5

a structure that helps prevent food from entering the respiratory tract

Question 6

hilum

Answer 6

the middle region of the lung where the bronchi, nerves, and other structures enter

Question 7

lobes

Answer 7

divisions of the lung

Question 8

mediastinum

Answer 8

the point at which the trachea divides into the bronchi

Question 9

parietal pleura

Answer 9

membrane that lines the wall of the thoracic cavity and ribs

Question 10

pleurae

Answer 10

double membrane layers that protect the outer surface of the lungs

Question 11

pleural cavity

Answer 11

a region filled with pleural fluid that prevents the lungs from being in contact with the ribs

Question 12

trachea

Answer 12

a tube that extends from the larynx

Question 13

viscera pleura

Answer 13

the membrane that covers the surface of the lungs

Question 14

vocal chords

Answer 14

tissue in the larynx that allows a person to sing and helps with speech pronunciation