Chpt. 23

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  1. Name of the air-filled pockets within the lungs where all gas exchange takes place.
    Alveoli
  2. What lines the conducting portion of the respiratory system?
    • Respiratory mucosa
    • (consists of epithelial layer and lamina propria)
  3. What is the sound production at the larynx called?
    Phonation
  4. The groove along the medial surface of the lunch that each bronchus travels to is called a ________.

    Also where pulmonary nerves, BV's and lymphatics enter the lunch
    hilum
  5. _______ is the condition where there is an inflammation of bronchial walls that causes constriction and breathing difficulty.
    Bronchitis
  6. What is Bronchodilation and what causes it?
    ~dilation of the bronchial airways (reduces resistance)

    ~caused by sympathetic ANS activation
  7. What is Bronchoconstriction and what is it caused by?
    ~constricts bronchi

    ~caused by parasymp. ANS and histamine release (allergy rxns)
  8. ______ is excessive stimulation and bronchoconstriction that severely restricts airflow.
    Asthma
  9. ______ contains the supportive tissues and lymphatic vessels of the lungs
    Trabeculae
  10. ______ is an oily secretion that contains phospolipids and proteins and reduces surface tension.
    surfactant
  11. _______ is the thin membrane of alveoli where gas exchange takes place
    Respiratory membrane
  12. The Respiratory membrane contains:
    A) endothelial calls
    B) fused basal laminae
    C) squamous epithelial lining
    D) all of these
    D) all of these
    (this multiple choice question has been scrambled)
  13. ______ is an inflammation of the lobules of the lungs that causes fluid to leak into alveolo and compromises function of the respiratory membrane.
    Pneumonia
  14. The respiratory exchange receives blood from:
    A) pulmonary veins
    B) all of these
    C) alveolar capillaries
    D) arteries of pulmonary circuit
    D) arteries of pulmonary circuit
    (this multiple choice question has been scrambled)
  15. ______ respiration includes all processes incolced in exchanging 02 and CO2 with the environment.
    External
  16. _______ respiration involves the uptake of O2 and production of CO2 w/in individual cells
    internal
  17. Which is NOT one of the processes of external respiration?
    A) gas diffusion (across membranes and capillaries)
    B) pulmonary ventilation (breathing)
    C) transport of O2 and CO2
    D) production of CO2
    D) production of CO2
    (this multiple choice question has been scrambled)
  18. ______ is the physical movement of air in and out of respiratory tract that provides alveolar ventilation
    pulmonary ventilation
  19. _______ allows air into the pleural cavity
    A) pneumothorax
    B) aneuryism
    C) atelectasis
    D) stroke
    A) pneumothorax
    (this multiple choice question has been scrambled)
  20. _____ is the result of a pneumothorax; called a "collapsed lung"
    A) stroke
    B) atelectasis
    C) aneuryism
    D) pneumothorax
    B) atelectasis
    (this multiple choice question has been scrambled)
  21. Inhalation is
    A) neither
    B) passive
    C) either active or passive
    D) active
    D) active
    (this multiple choice question has been scrambled)
  22. Exhalation is:
    A) neither
    B) either active or passive
    C) active
    D) passive
    B) either active or passive
    (this multiple choice question has been scrambled)
  23. Which is NOT a mechanism of breathing?
    A) diaphragm
    B) accessory muscles
    C) external intercostal muscles
    D) pectoral muscles
    D) pectoral muscles
    (this multiple choice question has been scrambled)
  24. When inhalation muscles relax, the elastic components of muscles and lungs recoils, returning the lungs to their original position in a process called ________
    A) stical alveoli movement
    B) rebounding lung
    C) elastic rebound
    D) atmospheric pressure
    C) elastic rebound
    (this multiple choice question has been scrambled)
  25. States that each gas contributes to the total pressure in proportion to its # of molecules
    A) Dalton's law
    B) Boyle's law
    C) Henry's law
    D) Sam's law
    A) Dalton's law
    (this multiple choice question has been scrambled)
  26. ______ is the pressure contributed by each gas in the atmosphere.
    A) partial pressure
    B) atmospheric pressure
    C) none of these
    A) partial pressure
    (this multiple choice question has been scrambled)
  27. States that when a gas under pressure comes in contact with a liquid, gas dissolves in liquid until an equilibruim and that the amount of gas in a solution is proportional to partial pressure of that gas.
    A) Henry's law
    B) Boyle's law
    C) Dalton's law
    D) Sam's law
    A) Henry's law
    (this multiple choice question has been scrambled)
  28. Factor(s) that effect hemoglobin is/are
    A) metabolic activity
    B) blood pH
    C) temperature
    D) all of these
    D) all of these
    (this multiple choice question has been scrambled)
  29. According to the oxygen-hemoglobin saturation curve, higher PO2 results in a _____ Hb saturation.
    A) greater
    B) unchanged
    C) less
    A) greater
    (this multiple choice question has been scrambled)
  30. The Bohr Effect is caused by
    A) CO2
    B) H2O
    C) H
    D) O2
    A) CO2
    (this multiple choice question has been scrambled)
  31. Fetal Hb binds ____ O2 than adult Hb
    A) more
    B) equal
    C) less
    A) more
    (this multiple choice question has been scrambled)
  32. Co2 can be carries in the blood stream by being:
    A) dissolved in plasma
    B) converted to carbonic acid
    C) bound to protein portion of hemolobin
    D) all of these
    D) all of these
    (this multiple choice question has been scrambled)
  33. The Dorsal Respiratory Group (DRG) functions in
    A) both
    B) quiet breathing
    C) forced breathing
    D) neither
    A) both
    (this multiple choice question has been scrambled)
  34. The Ventral Respiratory Group (DRG) functions in
    A) neither
    B) both
    C) quiet breathing
    D) forced breathing
    D) forced breathing
    (this multiple choice question has been scrambled)
  35. Hypercapnia is an _______ in arterial PCO2 that stimulates chemoreceptors to restore homeostatis
    a) increase
    b) decrease
    a) increase
  36. Hering-Breuer Reflexes
    A) all of these
    B) stimulates inspiratory centers during lung deflation
    C) prevent overexpansion of lungs
    D) inhibit expiratory centers
    A) all of these
    (this multiple choice question has been scrambled)
Author
ID
15624
Card Set
Chpt. 23
Description
Anatomy
Updated
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