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PHSI3011 07-1 Cardiorespiratory adaptation to high altitude

Michael Jardine 10 questions Updated 10 Nov 2017

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Questions in this quiz (10)

  1. 1Label the following:Image for question 1
    1. AAtmospheric air
    2. BInspired air
    3. CAlveolar gas
    4. DArterial blood
    5. EMixed venous blood
  2. 2True or false: Hypoxia (measured in the Carotid artery) triggers an increase in respiratory activity, which in turn increases ventilation. In response to the nasopharyngeal (diving) reflex (yeah, wrong lecture. whatevs), this is absent.
    1. ATrue
    2. BFalse
  3. 3True or false: Pulmonary stretch receptors influence the cardiovascular system as part of the Hering-Breuer reflex.
    1. ATrue
    2. BFalse
  4. 4Hypoxia causes both EXCITATION (secondarily, from pulmonary stretch receptor activity) and INHIBITION (primarily, from chemoreceptor activity) of HR.
    At high altitude altitude, what is the NET effect?
    1. AExcitation
    2. BInhibition
  5. 5Hypoxia causes both EXCITATION (secondarily, from pulmonary stretch receptor activity) and INHIBITION (primarily, from chemoreceptor activity) of Vascular Resistance.
    At high altitude altitude, what is the NET effect?
    1. AExcitation (so secondary vasoconstriction)
    2. BInhibition (so primary vasodilation)
    3. CExcitation (so primary vasoconstriction)
    4. DInhibition (so secondary vasodilation)
    5. EExcitation (so primary vasodilation)
    6. FInhibition (so primary vasoconstriction)
    7. GExcitation (so secondary vasodilation)
    8. HInhibition (so secondary vasoconstriction)
  6. 6The NTS is where the quite a few of the baroreceptors and chemoreceptors lead to. What is it, though?
    NTS = ??
    1. ANucleus of Solitary Tract (NTS)
    2. BNucleus Tractus Solitarii (NTS)
  7. 7Fill in the two arrows.Image for question 7
    1. A↑
    2. B↓
  8. 8What is it that moves the curve to the blue one?Image for question 8
    1. A2-DPG
    2. BErythropoietin
  9. 9Over prolonged exposure to high altitude (a few days or more), production of __________ increases. The effect of this is to maintain O2 unloading in capillaries, despite reduction in inspired PO2.
    1. A2-DPG
    2. B2-BPG
    3. C2,3-DPG
    4. D2,3-BPG
    5. ERBC production
  10. 10Hypoxia at high altitude results in [blank_start]__________[blank_end] Blood-brain barrier permeability and Cerebral [blank_start]__________[blank_end].
    1. AIncreased
    2. BDecreased
    3. CVasodilation
    4. DVasoconstriction

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Description
PHSI3011 07-1 Cardiorespiratory adaptation to high altitude
Language
English
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98
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Created on 10 Nov 2017 · updated on 10 Nov 2017
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