Deck 15: Respiratory System

Question 1

The upper respiratory tract includes all of the following except the

A) nose
B) trachea
C) pharynx
D) larynx

Answer 1

B

Question 2

The trachea

A) is also called the windpipe
B) contains C-shaped rings of cartilage
C) is lined by respiratory mucosa
D) all of the above

Answer 2

D

Question 3

The lower respiratory tract includes all of the following except the

A) trachea
B) bronchi
C) larynx
D) alveoli

Answer 3

C

Question 4

The paranasal sinuses

A) are lined with mucosa continuous with the nasal cavity
B) help lighten the weight of the skull bones
C) act as resonant chambers for sound
D) all of the above

Question 5

Which of these structures is not in the larynx?

A) Vocal cords
B) Palatine tonsils
C) Glottis
D) Epiglottis

Question 6

The partition that divides the nasal cavities is called the

A) nasal septum
B) external nares
C) conchae
D) none of the above

Question 7

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

A) secondary bronchi
B) bronchioles
C) alveolar ducts
D) tracheae

Question 8

The function of the surfactant in the lung is to help

A) reduce the surface tension of water in the alveoli
B) trap bacteria and dust
C) move bacteria and dust toward the pharynx
D) both b and c above

Question 9

All of the following are paranasal sinuses except the

A) frontal sinus
B) maxillary sinus
C) sphenoid sinus
D) mandibular sinus

Question 10

The respiratory mucosa helps protect the respiratory system by

A) trapping bacteria
B) moving contaminated mucus towards the pharynx
C) having ciliated epithelium beat in only one direction
D) all of the above

Question 11

The function of the epiglottis is to

A) anchor the vocal cords
B) change the pitch of the voice
C) keep food from entering the trachea
D) both a and b above

Question 12

The respiratory membrane

A) lines most of the air distribution tubes
B) is another term for the respiratory mucosa
C) lines the alveoli
D) both a and b above

Question 13

Which of the following tubes does not enter or exit the pharynx?

A) Larynx
B) Esophagus
C) Auditory tubes
D) All of these tubes enter or exit the pharynx

Question 14

The respiratory mucosa

A) lines most of the air distribution tubes
B) includes the wall of the alveoli
C) includes the wall of the capillaries surrounding the alveoli
D) both b and c above

Question 15

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

A) larynx
B) oropharynx
C) nasopharynx
D) trachea

Question 16

Which of the following statements is correct?

A) The right lung has two lobes, the left lung has three lobes.
B) The apex of the lung rests against the diaphragm.
C) The lungs are covered by the visceral pleura.
D) All of the above are correct.

Question 17

The mucous blanket

A) only covers the nose and throat
B) traps dust, pollen, and other contaminants
C) only covers the alveoli and bronchioles
D) both b and c above

Question 18

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

A) cellular respiration
B) internal respiration
C) external respiration
D) breathing

Question 19

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

A) trachea
B) bronchioles
C) primary bronchi
D) secondary bronchi

Question 20

The lacrimal sacs drain directly into the

A) oropharynx
B) laryngopharynx
C) nasal cavity
D) larynx

Question 21

During expiration

A) the diaphragm relaxes and moves up into the thoracic cavity
B) the chest cavity is reduced in volume
C) the pressure in the thoracic cavity increases
D) all of the above

Question 22

Oxygen in the lung

A) is actively transported out of the lung
B) converts hemoglobin to oxyhemoglobin
C) converts oxyhemoglobin to hemoglobin
D) both a and b above

Question 23

The pulmonary stretch receptors

A) stimulate inspiration
B) inhibit inspiration
C) are inhibited by expiration
D) both b and c above

Question 24

Conchae are shelflike structures found in the

A) ethmoid sinus
B) nasal cavities
C) laryngopharynx
D) frontal sinus

Question 25

The chemoreceptors in the carotid and aorta are sensitive to

A) an increase in blood carbon dioxide
B) a decrease in blood oxygen
C) an increase in blood acidity
D) all of the above

Question 26

Which of the following is not done by the respiratory system?

A) Warms the air coming into the body
B) Filters the air coming into the body
C) Facilitates the sense of smell
D) All of the above are done by the respiratory system

Question 27

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

A) vital capacity
B) residual volume
C) tidal volume
D) expiratory reserve volume

Question 28

The most important muscle(s)of forced expiration is (are)the

A) diaphragm
B) internal intercostals
C) abdominal muscles
D) both b and c above

Question 29

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

A) Trachea
B) Alveoli
C) Bronchi
D) Both a and c above

Question 30

Dyspnea is labored breathing that is often associated with

A) hypoventilation
B) hyperventilation
C) eupnea
D) apnea

Question 31

Which volume is not included in vital capacity?

A) Tidal volume
B) Residual volume
C) Inspiratory reserve volume
D) Expiratory reserve volume

Question 32

Carbon dioxide in the tissue cells

A) is actively transported to the blood
B) converts hemoglobin to carbaminohemoglobin
C) is carried as bicarbonate ions in the blood
D) both b and c above

Question 33

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

A) vital capacity
B) residual volume
C) tidal volume
D) expiratory reserve volume

Question 34

Which term refers to a normal respiratory rate?

A) Dyspnea
B) Apnea
C) Eupnea
D) Hyperventilation

Question 35

During inspiration

A) the diaphragm contracts and moves up into the thoracic cavity
B) the chest cavity expands
C) the pressure in the thoracic cavity increases
D) all of the above

Question 36

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

A) cellular respiration
B) internal respiration
C) external respiration
D) breathing

Question 37

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

A) Trachea
B) Alveoli
C) Bronchi
D) Both a and c above

Question 38

The inspiratory and expiratory centers are located in the

A) pons
B) cerebrum
C) medulla
D) cerebellum

Question 39

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

A) diaphragm
B) internal intercostals
C) abdominal muscles
D) both b and c above

Question 40

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

A) Alveoli
B) Trachea
C) Bronchi
D) All of the above are covered by the respiratory mucosa

Question 41

The upper respiratory tract consists of the nose,pharynx,and trachea.

Question 42

The auditory,or eustachian,tubes connect the

A) inner ear with the nasopharynx
B) inner ear with the oropharynx
C) middle ear with the nasopharynx
D) middle ear with the oropharynx

Question 43

The organs of the respiratory system are designed to perform two basic functions: air distribution and gas exchange.

Question 44

The space between the vocal cords is called the

A) epiglottis
B) conchae
C) glottis
D) thyroid cartilage

Question 45

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

A) Medullary ventilation area
B) Medullary rhythmicity area
C) Brainstem rhythmicity area
D) Brainstem ventilation area

Question 46

Oxygen in the blood is carried most efficiently by

A) combining with blood plasma
B) combining with water in the blood
C) combining with hemoglobin in blood cells
D) moving up the diffusion gradient of oxygen in the lungs

Question 47

These tonsils are not in the pharynx

A) lingual
B) pharyngeal
C) palatine
D) neither a nor c is in the pharynx

Question 48

Carbon dioxide in the blood is carried most efficiently by

A) bicarbonate ions
B) being dissolved in blood plasma
C) combining with hemoglobin in blood cells
D) moving up the diffusion gradient of carbon dioxide in the tissues

Question 49

Which of the following is not true of the pleura?

A) An inflammation of the pleura is called a pneumothorax.
B) The visceral pleura covers the lungs.
C) The parietal pleura covers chest wall.
D) All of the above are true of the pleura.

Question 50

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

A) oropharynx, nasopharynx, laryngopharynx
B) laryngopharynx, oropharynx, nasopharynx
C) nasopharynx, laryngopharynx, oropharynx
D) nasopharynx, oropharynx, laryngopharynx

Question 51

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

A) 26 mm Hg
B) 46 mm Hg
C) 56 mm Hg
D) none of the above

Question 52

In order for gas exchange to occur properly in the lungs

A) the partial pressure of oxygen in the alveoli must be greater than the partial pressure of oxygen in the blood
B) the partial pressure of carbon dioxide in the alveoli must be greater than the partial pressure of carbon dioxide in the blood
C) the partial pressure of carbon dioxide in the alveoli must be less than the partial pressure of carbon dioxide in the blood
D) both a and c above

Question 53

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

A) 10 square meters
B) 100 square meters
C) 500 square meters
D) 50 square meters

Question 54

The lower respiratory tract consists of the larynx,bronchi,and lungs.

Question 55

Organs of the respiratory system are designed to perform which of the following functions?

A) Help regulate body temperature
B) Distribute air
C) Provide for the exchange of gases
D) Both b and c above

Question 56

Another term for pulmonary ventilation is

A) internal respiration
B) breathing
C) external respiration
D) both b and c above

Question 57

Another name for the nostrils of the nose is

A) external nares
B) nasal cavities
C) nasal sinuses
D) nasal septum

Question 58

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

A) It increases the surface area over which air must pass.
B) It is the location of the sense of smell.
C) It warms and humidifies the air.
D) All of the above are functions of the conchae.

Question 59

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

A) Lateral respiratory group; ventral respiratory group
B) Ventral respiratory group; anterior respiratory group
C) Ventral respiratory group; dorsal respiratory group
D) Dorsal respiratory group; posterior respiratory group

Question 60

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

A) 80 mm Hg
B) 60 mm Hg
C) 40 mm Hg
D) 20 mm Hg

Question 61

The nicotine in cigarette smoke stimulates the cilia to beat rapidly in both directions,stopping the efficient removal of the trapped debris.

Question 62

The tonsils are located in the larynx.

Question 63

Another name for nostrils is the right and left nasal cavities.

Question 64

Two pairs of tonsils are located in the pharynx.

Question 65

The respiratory membrane separates the air in the alveoli from the blood in the vessels.

Question 66

The mucous blanket helps to purify the air as it enters the lung.

Question 67

A "head cold" involves the upper respiratory tract.

Question 68

The cilia lining the air distribution tubes beat upward to help move the trapped debris to the pharynx.

Question 69

The lacrimal sacs drain tears into the nasopharynx.

Question 70

A "chest cold" involves the lower respiratory tract.

Question 71

The respiratory membrane lines most of the air distribution tubes in the respiratory system.

Question 72

The auditory tubes open into the oropharynx and help in the equalization of air pressure between the middle ear and external ear.

Question 73

The "Adam's apple" is part of the larynx.

Question 74

The four paranasal sinuses are named for the bones in which they are found.They are the frontal,parietal,sphenoidal,and ethmoidal.

Question 75

The pharynx can be considered part of both the respiratory and digestive systems.

Question 76

The functions of the paranasal sinuses include lightening the bones of the skull and serving as a resonant chamber for sound.

Question 77

The cilia lining the air distribution tubes beat downward to help move air into the lung.

Question 78

The auditory tubes allow infections in the nasopharynx to spread to the middle ear.

Question 79

The vocal cords are short smooth muscles that are found in the larynx.

Question 80

If an individual requires supplemental oxygen,it is first bubbled through water to remove dust and pollen.