RESPIRATORY SYSTEM EXAM
QUESTIONS AND ANSWERS
A molecule of air enters the nose through the external nares. Which of the following is
the correct pathway to the trachea?
a. nasal cavity, larynx, pharynx, trachea
b. oral cavity, nasal cavity, larynx, pharynx, trachea
c. nasopharynx, nasal cavity, laryngopharynx, trachea
d. nasal cavity, pharynx, larynx, trachea
e. nasal cavity, trachea, larynx, pharynx - Answer-d. nasal cavity, pharynx, larynx,
trachea
which of the following is a passageway for both air and food?
a. trachea
b. larynx
c. pharynx
d. bronchus
e. esophagus - Answer-c. pharynx
the largest of the laryngeal cartilages is the
a. epiglottis
b. thyroid cartilage
c. cricoid cartilage
d. corniculate cartilage
e. cuneiform cartilage - Answer-b. thyroid cartilage
When people aspirate liquids or food into their lungs, the liquid or food most commonly
enters the right lung rather than the left lung. This is because the right primary bronchus
is __________ than the left primary bronchus.
a. longer
b. thinner
c. more vertical
d. less ciliated
e. shorter - Answer-c. more vertical
the serous membranes that surround the lungs are called the
a. mucous membranes
b. synovial membranes
c. pleural membranes
d. peritoneal membranes
e. pulmonary membranes - Answer-c. pleural membranes
arrange the following in order from highest to lowest PO2 (Hint: remember Henry's law)
(1) PO2 of pulmonary veins
, (2) PO2 of pulmonary artery
(3) PO2 of alveolar air
a. 1,2,3
b. 2,1,3
c. 2,3,1
d. 3,1,2
e. 3,2,1 - Answer-d. 3,1,2
hemoglobin that has released its oxygen
a. loses its affinity for oxygen
b. will dissolve in the plasma
c. will bind more readily to carbon dioxide
d. is broken down to heme and globing and excreted
e. will bind more readily to oxygen - Answer-c. will bind more readily to carbon dioxide
when carbon dioxide levels in the blood increase, the
a. condition is called hypocapnia
b. pH of the blood increases
c. blood becomes more acidic
d. number of hydrogen ions in the blood decreases
e. blood becomes more alkaline - Answer-c. blood becomes more acidic
The Herin-Breuer reflex
a. causes erratic respirations
b. helps prevent overinflation of the lungs
c. has its sensory components in the sympathetic nerves
d. is a normal response to increased oxygen content in the blood
e. limits how much air a person can expire - Answer-b. helps prevent overinflation of the
lungs
which of the following is mismatched?
a. bronchitis - inflammation of the bronchi
b. emphysema - destruction of the alveolar walls
c. pulmonary fibrosis - loss of elastic recoil in the lung
d. cystic fibrosis - replacement of lung tissue with fibrous connective tissue
e. smokers - chronic obstructive pulmonary disease - Answer-d. cystic fibrosis -
replacement of lung tissue with fibrous connective tissue
Activity A involves 1) cerebral, voluntary control of breathing 2) paired arytenoid
cartilages 3) the cricoid cartilage 4) ventral respiratory groups in the medulla 5) strong
contraction of the internal intercostal muscles and abdominal muscles 6) resonating
chambers in the paranasal sinuses 7) Monte 8) vocal chords () breathing the would not
be considered tidal
Activity A is:
a. coughing
b. screaming during a Griz-Cat football game
QUESTIONS AND ANSWERS
A molecule of air enters the nose through the external nares. Which of the following is
the correct pathway to the trachea?
a. nasal cavity, larynx, pharynx, trachea
b. oral cavity, nasal cavity, larynx, pharynx, trachea
c. nasopharynx, nasal cavity, laryngopharynx, trachea
d. nasal cavity, pharynx, larynx, trachea
e. nasal cavity, trachea, larynx, pharynx - Answer-d. nasal cavity, pharynx, larynx,
trachea
which of the following is a passageway for both air and food?
a. trachea
b. larynx
c. pharynx
d. bronchus
e. esophagus - Answer-c. pharynx
the largest of the laryngeal cartilages is the
a. epiglottis
b. thyroid cartilage
c. cricoid cartilage
d. corniculate cartilage
e. cuneiform cartilage - Answer-b. thyroid cartilage
When people aspirate liquids or food into their lungs, the liquid or food most commonly
enters the right lung rather than the left lung. This is because the right primary bronchus
is __________ than the left primary bronchus.
a. longer
b. thinner
c. more vertical
d. less ciliated
e. shorter - Answer-c. more vertical
the serous membranes that surround the lungs are called the
a. mucous membranes
b. synovial membranes
c. pleural membranes
d. peritoneal membranes
e. pulmonary membranes - Answer-c. pleural membranes
arrange the following in order from highest to lowest PO2 (Hint: remember Henry's law)
(1) PO2 of pulmonary veins
, (2) PO2 of pulmonary artery
(3) PO2 of alveolar air
a. 1,2,3
b. 2,1,3
c. 2,3,1
d. 3,1,2
e. 3,2,1 - Answer-d. 3,1,2
hemoglobin that has released its oxygen
a. loses its affinity for oxygen
b. will dissolve in the plasma
c. will bind more readily to carbon dioxide
d. is broken down to heme and globing and excreted
e. will bind more readily to oxygen - Answer-c. will bind more readily to carbon dioxide
when carbon dioxide levels in the blood increase, the
a. condition is called hypocapnia
b. pH of the blood increases
c. blood becomes more acidic
d. number of hydrogen ions in the blood decreases
e. blood becomes more alkaline - Answer-c. blood becomes more acidic
The Herin-Breuer reflex
a. causes erratic respirations
b. helps prevent overinflation of the lungs
c. has its sensory components in the sympathetic nerves
d. is a normal response to increased oxygen content in the blood
e. limits how much air a person can expire - Answer-b. helps prevent overinflation of the
lungs
which of the following is mismatched?
a. bronchitis - inflammation of the bronchi
b. emphysema - destruction of the alveolar walls
c. pulmonary fibrosis - loss of elastic recoil in the lung
d. cystic fibrosis - replacement of lung tissue with fibrous connective tissue
e. smokers - chronic obstructive pulmonary disease - Answer-d. cystic fibrosis -
replacement of lung tissue with fibrous connective tissue
Activity A involves 1) cerebral, voluntary control of breathing 2) paired arytenoid
cartilages 3) the cricoid cartilage 4) ventral respiratory groups in the medulla 5) strong
contraction of the internal intercostal muscles and abdominal muscles 6) resonating
chambers in the paranasal sinuses 7) Monte 8) vocal chords () breathing the would not
be considered tidal
Activity A is:
a. coughing
b. screaming during a Griz-Cat football game
