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Respiratory System

44 Questions
Respiratory System Quizzes & Trivia

Test questions.

Questions and Answers
  • 1. 
    Which of the following is not a function of the respiratory system?
    • A. 

      It helps with defecation

    • B. 

      It assist in the synthesis of vasodilators

    • C. 

      It helps regulate blood pressure

    • D. 

      It promotes the flow of lymph and venous blood

    • E. 

      It controls the pH of body fluids

  • 2. 
    The upper repiratory tract extends
    • A. 

      From the nose through the lungs

    • B. 

      From the nose through the pharynx

    • C. 

      From the nose through the trachea

    • D. 

      From the nose through the larynx

    • E. 

      From the nose through the alveoli

  • 3. 
    Which two ligaments extend from the thyroid cartilage to the arytenoid cartilages?
    • A. 

      Vestibular and vocal ligaments

    • B. 

      Thyrohyoid and cricoids

    • C. 

      Cricoids and arytenoids

    • D. 

      Corniculate and cricoid

    • E. 

      Laryngeal and cricoid

  • 4. 
    One benefit from air passing by the turbinates is
    • A. 

      The lower respiratory system remains humidified

    • B. 

      The turbinates seperate airflow from food and drink

    • C. 

      The turbinates filter CO2 from the air

    • D. 

      They increase its oxygen concentration

    • E. 

      This is where odors are detected

  • 5. 
    The most numerous cells in the lungs are called
    • A. 

      Muscosal cells

    • B. 

      Type I alveolar cells

    • C. 

      Dust cells

    • D. 

      Type II alveolar cells

    • E. 

      Vibrissae

  • 6. 
    Each alveolus is surrounded by a basket of blood capillaries supplied by
    • A. 

      The pulmonary artery

    • B. 

      The aorta

    • C. 

      The pulmonary vein

    • D. 

      The inferior vena cava

    • E. 

      The superior vena cava

  • 7. 
    Which of the following does not have cilia
    • A. 

      Terminal bronchioles

    • B. 

      Respiratory bronchioles

    • C. 

      The nasal cavity

    • D. 

      The trachea

    • E. 

      The bronchi

  • 8. 
    What is the basic distinction between an alveolar duct and an alveolar atrium?
    • A. 

      Presence or absence of cilia

    • B. 

      Their epithlial

    • C. 

      Their function

    • D. 

      Their size

    • E. 

      Their shape

  • 9. 
    Crude sounds are formed into intelligible speech by all the following except
    • A. 

      The lips

    • B. 

      The epiglottis

    • C. 

      The tongue

    • D. 

      The oral cavity

    • E. 

      The pharynx

  • 10. 
    Which of the following cartilages is largest?
    • A. 

      The corniculate cartilage

    • B. 

      The arytenoid cartilage

    • C. 

      The epiglottic cartilage

    • D. 

      The thyroid cartilage

    • E. 

      The cricoid cartilage

  • 11. 
    The Valsalva maneuver can assist in diagnosing a hernia by
    • A. 

      Decreasing intraabdominal pressure

    • B. 

      Increasing intrathoracic pressure

    • C. 

      Increasing expiratory force

    • D. 

      Reducing expiratory force

    • E. 

      Increasing mediastinal pressure

  • 12. 
    ____states that the total pressure of a gas mixture is equal to the sum of the partial pressure of its individual gases
    • A. 

      Boyles law

    • B. 

      Daltons law

    • C. 

      Valsalvas law

    • D. 

      Charles's law

    • E. 

      Henry's law

  • 13. 
    In a healthy person, which of the following will have the greatest influence on a resistance to the pulmonary airflow?
    • A. 

      Quantity of surfactant

    • B. 

      The diaphragm

    • C. 

      Atmospheric pressure

    • D. 

      Respiratory rate

    • E. 

      Bronchiole diameter

  • 14. 
    The amount of air in excess of tidal volume that can be inhaled with maximum effort is called
    • A. 

      Vital capacity

    • B. 

      Inspiratory capacity

    • C. 

      Inspiratory reserve volume

    • D. 

      Expiratory reserve volume

    • E. 

      Residual volume

  • 15. 
    Vital capacity consist of
    • A. 

      Inspiratory reserve volume+ expiratory volume

    • B. 

      Inspiratory reserve volume+tidal volume

    • C. 

      Expiratory reserve volume+ tidal volume+ inspiratory reserve volume

    • D. 

      Expiratory reserve volume+ tidal volume

    • E. 

      Respiratory volume+ tidal volume

  • 16. 
    Deep, rapid breathing often seen in terminal diabetes mellitus is known as what?
    • A. 

      Tachypnea

    • B. 

      Dyspnea

    • C. 

      Orthopnea

    • D. 

      Hyperpnea

    • E. 

      Kussmaul respiration

  • 17. 
    A gangrenous diabetic ulcer can be treated with which of the following?
    • A. 

      Hyperventilation

    • B. 

      Hyperbaric acid

    • C. 

      Hypercaloric intake

    • D. 

      Hypoxic drive

    • E. 

      Hyperoxidation

  • 18. 
    • A. 

      Carbonate

    • B. 

      Carbaminohemoglobin

    • C. 

      Carbonic acid

    • D. 

      Bicarbonate ions

    • E. 

      Dissolved gas

  • 19. 
    Tom is in respiratory arrest due to an electrical shock. why does a good Samaritan have up to 4 or 5 minutes to begin CPR and save Tom's life?
    • A. 

      A venous reserve of oxygen in Tom's blood

    • B. 

      Reserve oxygen in Tom's lungs

    • C. 

      The ambient Po2 can support life that long

    • D. 

      The Haldane effect lasts up to 5 minutes

    • E. 

      Tom's hypoxic drive will keep him alive for up to 5 minutes

  • 20. 
    During exercise, which of the following directly increases respiratory rate?
    • A. 

      The Bohr effect

    • B. 

      Increased H+ level in blood

    • C. 

      Anticipation of the needs of exercising muscle

    • D. 

      Reduced oxyhemoglobin

    • E. 

      Reduced blood of pH

  • 21. 
    Which of the following would slow down gas exchange between the blood and alveolar air?
    • A. 

      A decrease in nitrogen solubility

    • B. 

      An increase in respiratory rate

    • C. 

      An increase in alveolar surface area

    • D. 

      An increase in membrane thickness

    • E. 

      A decrease in membrane thickness

  • 22. 
    The addition of CO2 to the blood generates___ions in the RBCs, which in turn stimulates RBCs to unload more oxygen.
    • A. 

      Chloride

    • B. 

      Nitrogen

    • C. 

      Potassium

    • D. 

      Sodium

    • E. 

      Hydrogen

  • 23. 
    Which of the following has no effect on oxyhemoglobin dissociation
    • A. 

      Epinephrine

    • B. 

      Erythrocyte count

    • C. 

      Fever

    • D. 

      Thyroid hormone

    • E. 

      Low pH

  • 24. 
    Which has the highest concentration in the air we breathe?
    • A. 

      Nitrogen

    • B. 

      Oxygen

    • C. 

      Water vapor

    • D. 

      Carbon dioxide

    • E. 

      Hydrogen

  • 25. 
    Each hemoglobin molecule can transport up to_____ oxygen molecules
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

    • E. 

      5

  • 26. 
    Normally the systemic arterial blood has a Po2 of_____ mm Hg, a pco2 of ___mm Hg, and a pH of ___
    • A. 

      40,95,7.4

    • B. 

      95,40,7.4

    • C. 

      7.4,40,95

    • D. 

      95,7.4,40

    • E. 

      40,7.4,95

  • 27. 
    Which of the following enzymes in an RBC breaks H2CO3 down to water and carbon dioxide?
    • A. 

      Bisphosphoglycerate

    • B. 

      Carbaminoreductase

    • C. 

      Carboxyhemoglobin

    • D. 

      Hemoglobin

    • E. 

      Carbonic anhydrase

  • 28. 
    In one passage through a bed of systemic blood capillaries, the blood gives up about what percentage of its oxygen?
    • A. 

      5%-10%

    • B. 

      10%-15%

    • C. 

      20%-25%

    • D. 

      30%-40%

    • E. 

      70%-85%

  • 29. 
    Which of the following is the term for a deficiency of oxygen or the inablility to utilize oxygen in a tissue?
    • A. 

      Hypoxia

    • B. 

      Apoxia

    • C. 

      Anoxia

    • D. 

      Cyanosis

    • E. 

      Eupnea

  • 30. 
    Congestive heart failure results in which of the following?
    • A. 

      Hypoxemic hypoxia

    • B. 

      Ischemic hypoxia

    • C. 

      Histotoxic hypoxia

    • D. 

      Idiopathic hypoxia

    • E. 

      Anemic hypoxia

  • 31. 
    ___ is a lung disease marked by a reduced number of cilia, reduced motility of the remaining cilia, goblet cell hypertrophy and hypersecretion, and thick sputum.
    • A. 

      Asthma

    • B. 

      Oat-cell carcinoma

    • C. 

      Atelectasis

    • D. 

      Chronic bronchitis

    • E. 

      Emphysema

  • 32. 
    Which of the following would lead to anemic hypoxia?
    • A. 

      Sickle-cell

    • B. 

      Emphysema

    • C. 

      Squamous-cell carcinoma

    • D. 

      Asthma

    • E. 

      Ateclasis

  • 33. 
    A lung disease marked by abnormally few but large alveoli is
    • A. 

      Cor pulmonale

    • B. 

      Pulmonary hemosiderosis

    • C. 

      Empysema

    • D. 

      Atelectasis

    • E. 

      Collapsed lung

  • 34. 
    In____, the lungs are infected with Myocobacterium and produce fibrous nodules around the bacteria, leading to progressive pulmonary fibrosis
    • A. 

      Turberculosis

    • B. 

      Pneumonia

    • C. 

      Dyspnea

    • D. 

      Pneumothorax

    • E. 

      Rhinitis

  • 35. 
    Which malignancy originates in teh lamina propria of the bronchi?
    • A. 

      Oat-call carcinoma

    • B. 

      Adenocarcinoma

    • C. 

      Pulmonary edema

    • D. 

      Squamous-cell cancinoma

    • E. 

      Cor pumonale

  • 36. 
    Polio can sometimes damage the brainstem respiratory centers and result in
    • A. 

      Atelectasis

    • B. 

      Ondine's curse

    • C. 

      Pneumothorax

    • D. 

      Adult respiratory distress syndrome

    • E. 

      A Bohr effect

  • 37. 
    Which of these is most likely to result from contact between contaminated fingers and the nasal mucosa
    • A. 

      Apnea

    • B. 

      Adult respiratory distress syndrome

    • C. 

      Acute bronchitis

    • D. 

      Acute rhinitis

    • E. 

      Asthma

  • 38. 
    Scuba divers breathe a nitrogen-oxygen mixture rather than a pure compressed oxygen in order to avoid
    • A. 

      The bends

    • B. 

      Hypoxemic hypoxia

    • C. 

      Oxygen toxicity

    • D. 

      Rapture of the deep

    • E. 

      Cassion disease

  • 39. 
    Nitrogen bubbles can form in the blood and other tissues when a scuba diver ascneds too rapidly, producing a syndrome called
    • A. 

      Decompression sickness

    • B. 

      Hyperbaric disease

    • C. 

      Pulmonary edema

    • D. 

      Pulmonary barotrauma

    • E. 

      Cerebral embolism

  • 40. 
    The vagus and glossopharyngeal nerves carry afferent signals from peripheral chemoreceptors to a chemosensitive area in
    • A. 

      The medulla oblongata

    • B. 

      The pons

    • C. 

      The ventral respiratory group

    • D. 

      The dorsal respiratory group

    • E. 

      The pontine respiratory group

  • 41. 
    Mucus plays an important role in cleansing inhaled air. it is produced by ___ of the respiratory tract.
    • A. 

      Squamous alveolar cells

    • B. 

      Great alveolar cells

    • C. 

      The pleurae

    • D. 

      Ciliated cells

    • E. 

      Goblet cells

  • 42. 
    The blood transports more CO2 in the form of ____ than any other form
    • A. 

      Carbaminohemoglobin

    • B. 

      Bicarbnate ions

    • C. 

      Carboxyhemoglobin

    • D. 

      Dissolved CO2 gas

    • E. 

      Bisphosphocarbonate

  • 43. 
    Among its other purposes, the Valsalva maneuver is used
    • A. 

      To aid in defecation and urination

    • B. 

      As part of the procedure for giving CPR to a person in respiratory arrest

    • C. 

      To ventilate the lungs during eupnea

    • D. 

      To expel more than the usual tidal volume from the lungs

    • E. 

      To clear carbon monoxide from the body and replace it with oxygen

  • 44. 
    Blood banks dispose of blood that as low levels of bisphosphoglycerate What would be the probable reason for doing so?
    • A. 

      A low BPG level causes acidosis of blood

    • B. 

      Erythrocyte low in BPG do not unload CO2 very well

    • C. 

      Erythrocyte low in BPG do not unload O2 very well

    • D. 

      Erythrocyte low in BPG do not load CO2 very well

    • E. 

      A decline in BPG level is accompanied by a decline in hemoglobin level

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