Chap 15: Respiratory System WS

Question 1

Posterior openings from the nasal cavity into the pharynx

Answer 1

Internal nares

Question 2

Divides the nasal cavity into right and left parts

Answer 2

Nasal septum

Question 2

Bony ridges on the lateral walls of the nasal cavity

Answer 2

Conchae

Question 2

Air-filled spaces within bones that connect to the nasal cavity;
reduce skull weight and act as resonating chambers

Answer 2

Paranasal sinuses

Question 2

Brings tears from the eyes into the nasal cavity

Answer 2

Nasolacrimal duct

Question 3

Produces mucus that traps debris in the air; moves mucus to the pharynx

Answer 3

Epithelium

Question 4

The superior part of the pharynx

Answer 4

Nasopharynx

Question 5

These two structures prevent swallowed materials from
entering the nasopharynx

Answer 5

Soft palate and Uvula

Question 6

The auditory tubes open into this part of the pharynx

Answer 6

Nasopharynx

Question 7

Extends from the uvula to the epiglottis; the oral cavity opens
into it

Answer 7

Oropharynx

Question 8

Connects to the esophagus

Answer 8

Laryngopharynx

Question 9

Largest, unpaired cartilage of the larynx; the Adam’s apple

Answer 9

Thyroid cartilage

Question 10

Unpaired cartilage; covers opening into larynx during
swallowing

Answer 10

Epiglottis

Question 11

Three paired cartilages

Answer 11

1. Arytenoid cartilage
2. Corniculate cartilag
3. Cuneiform cartilage

Question 12

Ligaments that close together to prevent materials from
entering the larynx

Answer 12

Vestibular folds

Question 13

Vibrate to produce sound; the true vocal cords

Answer 13

Vocal folds

Question 14

Extends from the larynx and divides to form two tubes;
supported by C-shaped cartilages.

Answer 14

Trachea

Question 15

During swallowing, the esophagus pushes into this tube

Answer 15

Trachea

Question 16

Tubes that supply each lung

Answer 16

Primary bronchi

Question 17

Parts of the lung separated by deep fissures on the surface of
the lungs

Answer 17

Lobes

Question 18

Sections of lung separated by connective tissue but not visible
as surface fissures.

Answer 18

Bronchopulmonary segments

Question 19

Tubes that supply the lobes of the lungs

Answer 19

Secondary bronchi

Question 20

Tubes that supply the bronchopulmonary segments.

Answer 20

Tertiary bronchi

Question 21

Tubes that supply the respiratory bronchioles.

Answer 21

Terminal bronchioles

Question 22

Tubes formed by the subdivision of the respiratory bronchioles

Answer 22

Alveolar ducts

Question 23

Place where most gas exchange takes place (some exchange
takes place in the alveolar ducts and respiratory bronchioles)

Answer 23

Alveoli

Question 24

Cavity that contains the lungs and the pleural cavities

Answer 24

Thoracic cavity

Question 25

Cavity formed by membranes; surround the lungs

Answer 25

Pleural cavity

Question 26

The part of the pleural membrane that is in contact with the lungs

Answer 26

Visceral pleura

Question 27

The pleural cavity contains a thin film of this substance which
acts as a lubricant

Answer 27

Pleural fluid

Question 28

Located deep to the visceral pleura

Answer 28

Superficial lymphatic vessels

Question 29

Follows the bronchi, but does not supply alveoli

Answer 29

Deep lymphatic vessels

Question 29

Includes the diaphragm and muscles that elevate the ribs and
sternum

Answer 29

Muscles of inspiration

Question 30

Responsible for most of the change in thoracic volume during
breathing

Answer 30

Diaphragm

Question 31

Muscles that depress the ribs and sternum

Answer 31

Muscles of expiration

Question 32

Expiration during quite breathing occurs when these muscles
relax and the elastic recoil of the thorax and lungs decreases
thoracic volume

Answer 32

Muscles of inspiration

Question 33

Two factors that cause the lungs to recoil.

Answer 33

Surface tension of alveolar
Elastic fibers

Question 34

A mixture of lipoproteins produced by the epithelium of the
alveoli; reduces surface tension

Answer 34

Surfactant

Question 35

Two factors that keep the lungs from collapsing.

Answer 35

Surfactant
Pleural pressure

Question 36

Examples are tidal volume, inspiratory reserve volume,
expiratory reserve volume, and residual volume

Answer 36

Pulmonary volumes

Question 37

Volume of air inspired or expired by quiet breathing.

Answer 37

Tidal volume

Question 38

Volume of air in lungs after maximum expiration

Answer 38

Residual volume

Question 39

Sum of two or more pulmonary volume

Answer 39

Pulmonary capacity

Question 40

Sum of the inspiratory reserve volume, tidal volume, and
expiratory reserve volume

Answer 40

Vital capacity

Question 41

After a person inspires maximally, the rate at which lung
volume changes when he exhales maximally and as rapidly as
possible.

Answer 41

Forced expiratory vital capacity

Question 42

Volume of respiratory passageways in which no gas exchange
between air and blood occurs

Answer 42

Dead space

Question 43

The pressure exerted by a gas in a mixture of gases.

Answer 43

Partial pressure