Chapter 12 Vocab

Question 1

adenoids

Answer 1

lymphatic tissue in the nasopharynx

Question 2

aveolus

Answer 2

air lac in the lung

Question 3

apex of the lung

Answer 3

tip or uppermost portion of the lung

Question 4

base of the lung

Answer 4

lower portion of the lung

Question 5

bronchioles

Answer 5

smallest branches of the bronchi; lead to alveolar ducts

Question 6

bronchus

Answer 6

branch of the trachea that is a passageway into the lung; bronchial tube

Question 7

carbon dioxide (CO2)

Answer 7

gas expelled by body cells when oxygen and carbon atoms from food combine; exhaled through lungs

Question 8

cilia

Answer 8

thin hairs attached to the mucous membrane lining the respiratory tract; clear bacteria from lung

Question 9

diaphragm

Answer 9

muscle separating chest and abdomen; contracts to pull air into lung, relaxes to push air out

Question 10

epiglottis

Answer 10

lid-like piece of cartilage that covers the larynx; prevents food from entering

Question 11

expiration

Answer 11

breathing out; exhalation

Question 12

glottis

Answer 12

slit-like opening to the larynx

Question 13

hilum of the lung

Answer 13

middle region; bronchi, blood vessels and nerves enter and exit

Question 14

inspiration

Answer 14

breathing in; inhalation

Question 15

larynx

Answer 15

voice box; contains vocal cords

Question 16

lobe

Answer 16

division of a lung

Question 17

mediastinum

Answer 17

region between lungs in the chest cavity; contains trachea, heart, lymph nodes, aorta, esophagus, bronchus

Question 18

nares

Answer 18

openings through the nose carrying air into nasal cavities

Question 19

oxygen (O2)

Answer 19

gas that makes up 21% of air; passes into the bloodstream at the lungs and travels to all cells

Question 20

palatine tonsil

Answer 20

almond shapes mass of lymphatic tissue in the oropharynx

Question 21

paranasal sinus

Answer 21

one of the air cavities in the bones near the nose

Question 22

parietal pleura

Answer 22

outer layer of pleura lying closer to the ribs and chest wall

Question 23

pharynx

Answer 23

throat; including the nasopharynx, oropharynx and laryngopharynx

Question 24

plerua

Answer 24

double-layered membrane surrounding each lung

Question 25

plural cavity

Answer 25

space between the folds of the pleura

Question 26

pulmonary parenchyma

Answer 26

essential parts of the lung, responsible for respiration; bronchioles and alveoli

Question 27

respiration

Answer 27

process of moving air into and out of the lungs; breathing

Question 28

trachea

Answer 28

windpipe

Question 29

visceral pleura

Answer 29

inner layer of the pleura lying closer to the lung tissue