What Do You Know About The Respiratory System? Find Out In This Quiz!

44 Questions | Total Attempts: 646

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What Do You Know About The Respiratory System? Find Out In This Quiz!

One of the most important processes our bodies undertake is respiration – the action by which our bodies take in oxygen via the air in the atmosphere and release carbon dioxide, all in the effort of giving us energy. What do you know about the respiratory system? Find out in this quiz!


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. 
    Carbon dioxide is transported by all the following means except
    • 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