Respiratory System Quiz

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Respiratory System

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1. The molecule that prevents lung collapse by lowering the surface tension of the water film lining each alveolar sac is called?

1. A. Fibrosin

2. B. Lecithin

3. C. Renin

4. D. Surfactant

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1. The bluish cast that results from inadequate oxygenation of the skin and mucosa is called?

1. Albinism

2. Cyanosis

3. Melanosis

4. Xanthosis

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3. In order to inspire___

1. A. The diaphragm relaxes

2. B. The external intercostal muscles relax

3. C. The intrapulmonary volume must decrease

4. D. The intrapulmonary volume must increase

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4. Which one of the following is not true of the lungs___

1. A. The narrower portion of each lung is called the apex

2. B. The bases rest on the diaphragm

3. C. The right lung has three lobes

4. D. Both lungs have two lobes

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5. The opening between the vocal cords is called the___

1. A. Epiglottis

2. B. Glottis

3. C. Larynx

4. D. Thyroid cartilage

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4. The respiratory conducting passageways perform all of the following functions except___

1. A. Exchange of gases

2. B. Humidify air

3. C. Purify air

4. D. Warm incoming air

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7. Which one of the following structures is not part of the respiratory zone?

1. A. Alveolar sacs

2. B. Alveoli

3. C. Primary bronchi

4. D. Respiratory bronchioles

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8. Tidal volume, which may not significantly change with disease, has a normal value of approximately___

1. A. 1,000 mL

2. B. 300 mL

3. C. 500 mL

4. D. 800 mL

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9. The serous membrane covering the surface of the lungs is called the____

1. Mediastinum

2. Parietal pleura

3. Pleurisy

4. Visceral pleura

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10.

25. Which one of the following is not a feature of COPD?

1. A. Dyspnea becomes progressively more severe

2. B. Frequent pulmonary infections are common

3. C. Most COPD victims are hypoxic

4. D. Most patients have a genetic predisposition to COPD

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11. Which one of the following is not true of inspiration?

1. A. Contraction of the diaphragm muscle helps increase the size of the thoracic cavity

2. B. Increased intrapulmonary volume causes inhaled gases to spread out

3. C. Relaxation of the external intercostal muscles helps increase the size of the thoracic cavity

4. D. The decreased gas pressure produces a partial vacuum that forcibly sucks air in

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12. The flap of elastic cartilage that protects food from entering the larynx when swallowing is the___

1. A. Adamʹs apple

2. B. Epiglottis

3. C. Glottis

4. D. Thyroid cartilage

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13.

19. An emotionally-induced response during which air movement is similar to crying is___

1. A. Hiccupping

2. B. Laughing

3. C. Sneezing

4. D. Yawning

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14. The gas exchange that occurs between blood and tissue cells at systemic capillaries is called___

1. A. Expiration

2. B. External respiration

3. C. Internal respiration

4. D. Pulmonary ventilation

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15. Following the removal of the larynx, a person would be unable to____

1. A. Eat

2. B. Hear

3. C. Sneeze

4. D. Speak

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16. The maximum volume of air that can be inhaled after a normal inhalation is known as___

1. A. Expiratory reserve volume

2. B. Inspiratory reserve volume

3. C. Residual volume

4. D. Tidal volume

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17. The walls of the alveoli are composed largely of___

1. A. Pseudostratified epithelium

2. B. Simple cuboidal epithelium

3. C. Simple squamous epithelium

4. D. Stratified cuboidal epithelium

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18.

3. Which one of the following is not a function of the paranasal sinuses?

1. A. They act as resonance chambers for speech

2. B. They are olfactory receptors for smell

3. C. They lighten the skull

4. D. They produce mucus

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19.

6. What is the role of mucus in the nasal cavity?

1. A. Act as a resonance chamber for speech

2. B. Increase the air turbulence in the nasal cavity

3. C. Lighten the skull

4. D. Trap incoming bacteria and other foreign debris

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20.

13. When oxygen enters the respiratory system, what is the next structure to which it travels immediately upon leaving the trachea?

1. A. Alveoli

2. B. Bronchioles

3. C. Main (primary) bronchi

4. D. Tertiary bronchi

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21. The left lung, in contrast to the right lung, has___

1. A. One less lobe

2. B. One more lobe

3. C. The same number of lobes

4. D. Two more lobes

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22. A very deep inspiration that ventilates all alveoli is___

1. A. Coughing

2. B. Hiccupping

3. C. Sneezing

4. D. Yawning

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23. Vibration due to exhaled air that results in speech is a function of the___

1. A. Complete voice box

2. B. Epiglottis

3. C. Glottis

4. D. True vocal cords

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24. Air from the nasal cavity enters the superior portion of the pharynx called the___

1. A. Nasopharynx

2. B. Oropharynx

3. C. Palatopharynx

4. D. Tracheopharynx

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25. Cessation of breathing is called_____

1. A. Apnea

2. B. Eupnea

3. C. Hyperpnea

4. D. Tachypnea

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26. A patient with sinus congestion points to the area on the inside of the eye as a point of pain. The patient is referring to which sinus?

1. A. Ethmoidal

2. B. Frontal

3. C. Maxillary

4. D. Sphenoidal

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27. Air moving in and out of the lungs is called____

1. A. Expiration

2. B. External respiration

3. C. Inspiration

4. D. Pulmonary ventilation

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28. Oxygen binds with hemoglobin in the blood to form___

1. A. Carbon dioxide

2. B. Carbonic acid

3. C. Oxyhemoglobin

4. D. Plasma

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29. The abbreviation IRDS stands for___

1. A. Infant respiratory disease syndrome

2. B. Infant respiratory distress syndrome

3. C. Intermittent respiratory disease syndrome

4. D. Intermittent respiratory distress state

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30. Choose the initial part of the respiratory tract that is not considered part of the gas-exchange airways

1. A. Alveolar duct

2. B. Alveolar sacs

3. C. Bronchioles

4. D. Respiratory bronchioles

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31.

18. Exchange of both oxygen and carbon dioxide through the respiratory membrane occurs by___

1. A. Active transport

2. B. Simple diffusion

3. C. Facilitated diffusion

4. D. Passive transport

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32. Surfactant is usually present in fetal lungs in adequate quantities by___

1. A. 20-22 weeks of pregnancy

2. B. 22-24 weeks of pregnancy

3. C. 26-28 weeks of pregnancy

4. D. 28-30 weeks of pregnancy

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33. The pharynogotympanic tubes, which drain the middle ear, open into the___

1. A. Laryngopharynx

2. B. Nasopharynx

3. C. Oropharynx

4. D. Palatopharynx

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34. Gas exchange between the lungs and blood and between the blood and tissues is called___

1. A. Active transport

2. B. Cellular respiration

3. C. Respiration

4. D. Ventilation

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35.

39. The exchange of oxygen and carbon dioxide from the alveoli into the blood occurs by___

1. A. Active transport

2. B. Diffusion

3. C. Osmosis

4. D. Pinocytosis

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36. Most carbon dioxide is transported within blood plasma as___

1. A. Bicarbonate ion

2. B. Carbonic acid

3. C. Hydrogen ion

4. D. Oxyhemoglobin

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37.

5. Which one of the following is not a factor influencing respiratory rate and depth?

1. A. Emotional factors

2. B. Enzymatic factors

3. C. Levels of oxygen and carbon dioxide

4. D. Physical exercise

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38. Choose the alveolar cells that secrete surfactant

1. A. Type I cells

2. B. Type II cells

3. C. Type III cells

4. D. Types I and II cells

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39. The purpose of the cilia is to___

1. A. Contract smooth muscle

2. B. Move mucus back to the larynx

3. C. Phagocytize bacteria

4. D. Produce mucus

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Respiratory System Quiz

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