Chapter 15

Question 1

The upper respiratory tract includes all of the following except?

Answer 1

Trachea

Question 2

The lower respiratory includes all the following except?

Answer 2

Larynx

Question 3

The respiratory mucosa

Answer 3

Lines most of the air distribution tubes

Question 4

The respiratory membrane?

Answer 4

Lines most of the air distribution tubes and is another term for respiratory mucosa

Question 5

The mucous blanket?

Answer 5

Traps dust and pollen and other contaminants

Question 6

The cisterna chylia

Answer 6

Is part of the thoracic duct

Question 7

The respiratory mucosa helps protect the respiratory system by

Answer 7

trapping bacteria, moving contaminated mucus towards the pharynx, and having ciliated epithelium beat in only one direction

Question 8

The partition that divides the nasal cavities is called the

Answer 8

nasal septum

Question 9

All of the following are paranasal sinuses except the

Answer 9

mandibular sinus

Question 10

The lacrimal sacs drain directly into the

Answer 10

nasal cavity

Question 11

The thyroid cartilage (Adam’s apple) is part of the

Answer 11

larynx

Question 12

Which of these structures is not in the larynx?

Answer 12

Palatine tonsils

Question 13

The function of the epiglottis is to

Answer 13

keep food from entering the trachea

Question 14

All of the following structures contain cartilage in their walls except the

Answer 14

bronchioles

Question 15

The smallest of the air distribution tubes in the respiratory tract are the

Answer 15

alveolar ducts

Question 16

The function of the surfactant in the lung is to help

Answer 16

reduce the surface tension of water in the alveoli

Question 17

The exchange of oxygen and carbon dioxide between the alveoli and blood in the lung is called

Answer 17

external respiration

Question 18

The exchange of oxygen and carbon dioxide between the blood and cells throughout the body is called

Answer 18

internal respiration

Question 19

During inspiration

Answer 19

the chest cavity expands

Question 20

During expiration

Answer 20

the diaphragm relaxes and moves up into the thoracic cavity, the chest cavity is reduced in volume and the pressure in the thoracic cavity increases

Question 21

The most important muscle(s) of inspiration is (are) the

Answer 21

diaphragm

Question 22

Oxygen in the lung

Answer 22

converts hemoglobin to oxyhemoglobin

Question 23

Carbon dioxide in the tissue cells

Answer 23

converts hemoglobin to carbaminohemoglobin and is carried as bicarbonate ions in the blood

Question 24

The amount of air moved into and out of the lung during normal breathing is called

Answer 24

Tidal volume

Question 25

The largest amount of air that can be breathed in and out in one breath is called

Answer 25

Vital capacity

Question 26

Which volume is not included in vital capacity?

Answer 26

Residual volume

Question 27

The inspiratory and expiratory centers are located in the

Answer 27

medulla

Question 28

Which term refers to a normal respiratory rate?

Answer 28

Eupnea

Question 29

Dyspnea is labored breathing that is often associated with

Answer 29

hypoventilation

Question 30

Which of the following structures is involved in the air distribution function of the respiratory system?

Answer 30

Trachea and bronchi

Question 31

Which of the following structures is involved in the gas exchange function of the respiratory system?

Answer 31

Alveoli

Question 32

Which of the following is not covered by the respiratory mucosa?

Answer 32

Alveoli

Question 33

Conchae are shelflike structures found in the

Answer 33

Nasal cavities

Question 34

The space between the vocal cords is called the

Answer 34

glottis

Question 35

Another term for pulmonary ventilation is

Answer 35

Breathing

Question 36

Another name for the nostrils of the nose is

Answer 36

external nares

Question 37

The auditory, or eustachian, tubes connect the

Answer 37

middle ear with the nasopharynx

Question 38

Which of the following is not a function of the conchae?

Answer 38

It is the location of the sense of smell.

Question 39

These tonsils are not in the pharynx

Answer 39

lingual

Question 40

The order in which food or air would pass through the pharynx would

Answer 40

nasopharynx, oropharynx, laryngopharynx

Question 41

The surface area for gas exchange of all the alveoli is about

Answer 41

100 square meters

Question 42

Which of the following is not true of the pleura?

Answer 42

An inflammation of the pleura is called a pneumothorax.

Question 43

The partial pressure of oxygen in the blood returning to the lungs from the body is about

Answer 43

40 mm Hg

Question 44

The partial pressure of carbon dioxide in the blood returning to the lungs from the body is about

Answer 44

46 mm Hg

Question 45

In order for gas exchange to occur properly in the lungs

Answer 45

the partial pressure of oxygen in the alveoli must be greater than the partial pressure of oxygen in the blood and the partial pressure of carbon dioxide in the alveoli must be less than the partial pressure of carbon dioxide in the blood

Question 46

Oxygen in the blood is carried most efficiently by

Answer 46

combining with hemoglobin in blood cells

Question 47

Carbon dioxide in the blood is carried most efficiently by

Answer 47

bicarbonate ions

Question 48

Which term describes the group of control centers in the brainstem that produce the basic rhythm of breathing?

Answer 48

Medullary rhythmicity area

Question 49

Which of the following are the two most important control centers in the medulla for regulating breathing rhythm?

Answer 49

Ventral respiratory group; dorsal respiratory group