Chapter 23 Flashcards
1) Which of the following is NOT part of the upper respiratory system?
a) Nose
b) Oral cavity
c) Pharynx
d) Trachea
e) Nasal meatuses
d) Trachea
2) Which of the following is NOT a conducting zone action?
a) Clean air of debris
b) Conduct air into the lungs
c) Add water to air
d) Warm air
e) All of these are actions of the conducting zone.
e) All of these are actions of the conducting zone.
3) Which of the following is NOT a factor that determines the rate of pulmonary and systemic gas exchange?
a) Partial pressure difference of gases
b) surface are availability for gas exchange
c) Diffusion distance
d) Molecular weight and solubility of the gases
e) All of these are factors that determine the rate of pulmonary and systemic gas exchange.
e) All of these are factors that determine the rate of pulmonary and systemic gas exchange.
4) Which of the following is a passageway for air, food and water?
a) Pharynx
b) Larynx
c) Paranasal sinuses
d) Trachea
e) Esophagus
a) Pharynx
5) Which structure prevents food or water from entering the trachea?
a) Arytenoid cartilage
b) Epiglottis
c) Nasopharynx
d) Thyroid cartilage
e) Paranasal sinus
b) Epiglottis
6) The gas law that describes the pressure changes that occur during pulmonary ventilation is
a) Boyle’s law
b) Charles’ law
c) Henry’s law
d) The inhalation law
e) The law of partial pressure
a) Boyle’s law
7) Which structure is located anterior to the esophagus and carries air to the bronchi?
a) Trachea
b) Larynx
c) Nasopharynx
d) Pharynx
e) None of these choices
a) Trachea
8) Which of the following is the primary gas exchange site?
a) Trachea
b) Bronchiole
c) Nasal sinuses
d) Alveolus
e) Bronchus
d) Alveolus
9) Which of the below tissues maintains open airways in the lower respiratory system?
a) stratified squamous epithelium with keratin
b) ciliated pseudostratified columnar epithelium with goblet cells
c) hyaline cartilage
d) mucus membrane
e) bone
c) hyaline cartilage
10) Which of the below tissues provides the functions of the inner layer of the conducting organs?
a) stratified squamous epithelium with keratin
b) ciliated pseudostratified columnar epithelium with goblet cells
c) ciliated cuboidal epithelium with goblet cells
d) transitional epithelium with cilia
e) columnar connective tissue with goblet cells
b) ciliated pseudostratified columnar epithelium with goblet cells
11) The point where the trachea divides into right and left primary bronchi is a ridge called
a) Carina
b) Secondary bronchioles
c) Parietal pleura
d) Visceral pleura
e) Diaphragm
a) Carina
12) Which of the below tissues forms the exchange surfaces of the alveolus?
a) stratified squamous epithelium
b) ciliated pseudostratified columnar epithelium with goblet cells
c) simple squamous epithelium
d) hyaline cartilage
e) columnar connective tissue with goblet cells
c) simple squamous epithelium
13) Which of the following are cells of the alveoli that produce surfactant?
a) Type I alveolar cells
b) Type II alveolar cells
c) Type III alveolar cells
d) Surface cells
e) Macrophages
b) Type II alveolar cells
14) Which of the following is NOT a factor that affects pulmonary ventilation?
a) Lung compliance
b) Suface tension of alveolar fluid
c) Elastic recoil of the chest wall and lungs
d) Airway resistance
e) All of these are factors that affect pulmonary ventilation
e) All of these are factors that affect pulmonary ventilation
15) Which of the following indicates the direction of diffusion of gases at the alveoli of the lungs?
a) Oxygen into blood, Carbon dioxide into blood
b) Oxygen out of blood, Carbon dioxide into blood
c) Oxygen into blood, Carbon dioxide out of blood
d) Oxygen out of blood, Carbon dioxide out of blood
c) Oxygen into blood, Carbon dioxide out of blood
16) Exhalation begins when
a) Inspiratory muscles relax
b) Diaphragm contracts
c) Blood circulation is the lowest
d) Both Inspiratory muscles relax and Diaphragm contracts
e) All of these choices
a) Inspiratory muscles relax
17) Which of the following is the sum of the residual and the expiratory reserve volume?
a) Total lung capacity
b) Functional residual capacity
c) Inspiratory capacity
d) Vital capacity
e) Minimal volume
b) Functional residual capacity
18) Which of the following is NOT a factor that the rate of pulmonary and systemic gas exchange depends on?
a) Partial pressure difference of the gases
b) Surface area for gas exchange
c) Diffusion distance
d) Molecular weight and solubility of the gases
e) Force of contraction of diaphragm
e) Force of contraction of diaphragm
19) Which of the following is the dominant method of carbon dioxide transport?
a) Bound to hemoglobin
b) Bound to oxygen
c) Dissolved in plasma as a gas
d) Dissolved in plasma as bicarbonate ions
e) Diffusion
d) Dissolved in plasma as bicarbonate ions
20) When blood pH drops, the amount of oxyhemoglobin _____ and oxygen delivery to the tissue cells _____.
a) Increases, increases
b) Increases, decreases
c) Decreases, increases
d) Decreases, decreases
e) Does not change, does not change
c) Decreases, increases
21) Which of the following is a factor that does NOT affect hemoglobin’s affinity for oxygen?
a) pH of blood
b) Partial pressure of the oxygen
c) Amount of oxygen available
d) Temperature
e) Respiratory rate
e) Respiratory rate
22) Where are the nasal conchae?
a) A
b) C
c) T
d) U
e) V
b) C
23) Which tonsils are found in the oropharynx?
a) V
b) R
c) S
d) Q
e) U
b) R
24) What structure is also referred to as the Adam’s Apple?
a) G
b) H
c) I
d) J
e) K
d) J
25) Where is the larynx?
a) I
b) M
c) L
d) N
e) O
a) I
26) Where is the uvula?
a) E
b) F
c) Q
d) S
e) U
d) S
27) Where are the palatine tonsils?
a) E
b) F
c) R
d) U
e) None of these choices
c) R
28) Where is the soft palate?
a) C
b) E
c) G
d) Q
e) S
b) E
29) Where is the epiglottis?
a) O
b) R
c) S
d) F
e) Q
a) O
30) Where are the olfactory receptors found?
a) A
b) B
c) C
d) D
e) U
b) B