A&p 2 Urinary & Respiratory

101 Questions | Total Attempts: 220

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AP Quizzes & Trivia

Anatomoy and psyhiology quiz over urinary system & respiratory system


Questions and Answers
  • 1. 
    Which of the choices below is not a functional process performed by the respiratory system?
    • A. 

      Pulmonary ventilation

    • B. 

      Transport of respiratory gases

    • C. 

      External respiration

    • D. 

      Pulmonary respiration

  • 2. 
    The loudness of a persons voice depends on the
    • A. 

      Thickness of vestibular folds

    • B. 

      Length of the vocal folds

    • C. 

      Strength of the instrinsic laryngeal muscles

    • D. 

      Force with which air rushes across the vocal folds

  • 3. 
    The walls of the alveioli are composed of to types of cells, type I and type II.  The function of type II is to _________.
    • A. 

      Secrete surfactant

    • B. 

      Trap dust and other debris

    • C. 

      Replace mucus int he alveioli

    • D. 

      Protect the lungs from bacterial invasion

  • 4. 
    Complete the following statement using the choices below.  Air moves out of the lungs when the pressure inside the lungs is
    • A. 

      Less than the pressure in the atmosphere

    • B. 

      Greater than the pressure in the atmosphere

    • C. 

      Equal to the pressure in the atmosphere

    • D. 

      Greater than the intra alveolar pressure

  • 5. 
    Unlike inspiration, expiration is a passive act because no muscular contractions are involved.  Expiration, however, depends on two factors.  Which of the choices below lists those two factors?
    • A. 

      The recoil of elastic fibers that were stretched during inspiration and the inward pull of surface tension due to the film of alveolar fluid

    • B. 

      The expansion of respiratory muscles that were contracted during inspiration and the lack of surface tension on the alveolar wall

    • C. 

      The negative feedback of expansion fibers used during inspiration and the outward pull of surface tension due to surfactant

    • D. 

      Combined amount of CO2 in the blood and air in the alveioli

  • 6. 
    Which of the following maintains the patency (openness) of the trachea? 
    • A. 

      Surface tension of water

    • B. 

      Surfactant

    • C. 

      Carilage rings

    • D. 

      Pseudostratifeid ciliated epithelium

  • 7. 
    Intrapulmonary pressure is the
    • A. 

      Pressure within the pleural cavity

    • B. 

      Pressure within the alveoli of the lungs

    • C. 

      Negative pressure in the intrapleural space

    • D. 

      Difference between atmospheric pressure and respiratory pressure

  • 8. 
    The relationship between the pressure and volume of gases is given by
    • A. 

      Boyles law

    • B. 

      Henrys law

    • C. 

      Charles law

    • D. 

      Daltons law

  • 9. 
    The statement "in a mixture of gases, the total pressure is the sum of the individual partial pressures of gases in the mixture" paraphrases
    • A. 

      Henrys law

    • B. 

      Boyles law

    • C. 

      Daltons law

    • D. 

      Charles law

  • 10. 
    Surfactant helps to prevent the alveoli from collasping by
    • A. 

      Humidifying the air before it enters

    • B. 

      Warming the air before it enters

    • C. 

      Interfering with the conhesiveness of water molecules, thereby reducing the surface tension of alveolar fluid

    • D. 

      Protecting the surface of alveioli from dehydration and other enviromental variations

  • 11. 
    For gas exchange to be efficient, the respiratory membrane must be
    • A. 

      At least 3 micrometers thick

    • B. 

      0.5 to 1 micrometer thick

    • C. 

      Between 5 and 6 micrometers thick

    • D. 

      The thickness of the respiratory membrane is not important in the efficiency of gas exchange.

  • 12. 
    With the Bohr effect, more oxygen is released because a(n)
    • A. 

      Decrease in pH (acidosis) strengthens the hemoglobin oxygen bond

    • B. 

      Decrease in pH (acidosis) weakens the hemoglobin-oxygen bond

    • C. 

      Increase in pH (alkalosis) strenghens the hemoglobin oxygen bond

    • D. 

      Increase in pH (alkalosis) weakens the hemoglobin oxygen bond

  • 13. 
    The most powerful respiratory stimulus for breathing in a healthy person is
    • A. 

      Loss of oxygen in tissues

    • B. 

      Increase of carbon dioxide

    • C. 

      PH (acidosis)

    • D. 

      PH (alkalosis)

  • 14. 
    Nerve impulses from __________________ will result in inspiration
    • A. 

      The ventral respiratory group

    • B. 

      The chemoreceptor center

    • C. 

      Broca's center

    • D. 

      The preoptic nucleus of the hypothalamus

  • 15. 
    In the plasma, the quantity of oxygen in solution is
    • A. 

      Only about 1.5% of the oxygen carried in dissolved form

    • B. 

      About equal to the oxygen combined with hemoglobin

    • C. 

      Greater thatn the oxygen combined with hemoglobin

    • D. 

      Not present except where it is combined with carrier molecules

  • 16. 
    Which of the following statements is incorrect?
    • A. 

      During fetal life, lungs are filled with fluid

    • B. 

      Respiratory rate is lowest in newborn infants

    • C. 

      Descent of the diaphragm results in abdominal breathing

    • D. 

      The chest wall becomes more rigid with age

  • 17. 
    Which of the choices below describes the forces that act to pull the lungs away from the thorax wall and thus collapse the lungs?
    • A. 

      The neural tendency for the lungs to recoil and the surface tension of the alveolar fluid

    • B. 

      Compliance and transpulmonary pressure

    • C. 

      The natural tendency for the lungs to recoil and transpulmonary pressures

    • D. 

      Compliance and the surface tension of the alveolar fluid

  • 18. 
    Which of the following does not influence the increase in ventilation that occurs as exercise is initiated?
    • A. 

      Psychic stimuli

    • B. 

      Decrease in lactic acid levels

    • C. 

      Proprioceptors

    • D. 

      Stimultaneous cortical motor activation of the skeletal muscles and respiratory center

  • 19. 
    Which of the following is not a form of lung cancer?
    • A. 

      Adenocarcinoma

    • B. 

      Kaposi's sarcoma

    • C. 

      Small cell carcinoma

    • D. 

      Squamous cell carcinoma

  • 20. 
    Which of the following is not an event necessary to supply the body with O2 and dispose of CO2?
    • A. 

      Pulmonary ventilation

    • B. 

      Blood pH adjustment

    • C. 

      Internal repiration

    • D. 

      External respiration

  • 21. 
    Which of the following is not true of the respiratory tract from the medium bronchi to the aveoli?
    • A. 

      Cartilage gradually decreases and disappears at the bronchiles

    • B. 

      Resistance to air flow increases due to the increase in cross sectional diameter

    • C. 

      Proportionally smooth muscle decreases uniformly

    • D. 

      Lining of the tubes changes from ciliated columnar to simple squamous epithelium in the alveoli

  • 22. 
    Which of the following determines lung compliance?
    • A. 

      Airway opening

    • B. 

      Flexibility of the thoracic cage

    • C. 

      Muscles of inspiration

    • D. 

      Alveolar surface tension

  • 23. 
    Tidal volume is air
    • A. 

      Remaining in the lungs after forced expiration

    • B. 

      Exchanged during normal breathing

    • C. 

      Inhaled after normal inspiration

    • D. 

      Forcibly expelled after normal expiration

  • 24. 
    Which of the choices below determines the direction of respiratory gas movement?
    • A. 

      Solubility in water

    • B. 

      Partial pressure gradient

    • C. 

      The temperature

    • D. 

      Molecular weight and size of the gas molecule

  • 25. 
    Possible causes of hypoxia include
    • A. 

      Too little oxygen in the atmosphere

    • B. 

      Obstruction of the esophagus

    • C. 

      Taking several rapid deep breaths

    • D. 

      Getting very cold