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Physio II

ivenkat 8 preguntas

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Preguntas del test (8)

  1. 1Intercostal muscles are the most important muscles of respiration
    1. AVerdadero
    2. BFalso
  2. 2Muller's maneuver measures maximum inspiratory pressure (MIP) developed against a block of the trachea at RV
    1. AVerdadero
    2. BFalso
  3. 3Valsalva maneuver measures Expiratory muscle strength - measures maximum expiratory pressure (MEP) at RV
    1. AVerdadero
    2. BFalso
  4. 4Cough - which statement is wrong
    1. ASensory reflex loop - RARs (rapidly adapting receptors) detect irritants and stimulate trigeminal nerve -> brain stem -> motor neurons ->respiratory muscle contractions
    2. BSequence - deep inhalation -> forced expiration on closed glottis -> open glottis forced espiration
    3. C3 most common cause of chronic cough (> 8 weeks) post nasal drip from rhinosinusitis, asthma and GERD
    4. DReaches a speed of 28,000 cm/sec, eject about 40,000 microdroplets which may contain >200,000 virus particles
  5. 5Airflow and respiratory pressures are measured in cm of H2O because the pressure changes in the lung are so small that it is hard to see a 1 or 2 mmHg change
    1. AVerdadero
    2. BFalso
  6. 6Regarding pressures all of the following are true except
    1. AP(alveolar) = P(barometric) at end inspiration and end expiration
    2. BP(alveolar) = P(Barometric) here is no air flow and glottis is closed
    3. CWhen P(alveolar) > P(barometric) the direction of airflow is - out of lungs (expiration)
    4. DPL = PA-Ppl
  7. 7During Respiration the following is the sequence except
    1. AInspiratory muscles contract -> thoracic cavity expands
    2. BPleural pressure becomes more negative (-5 to -8 cm of H2O)
    3. CTranspulmonary pressure decreases
    4. Dlungs inflate and alveolar pressure becomes subatmospheric --> air flows into the lungs until alveolar pressure equals atmospheric pressure
  8. 8Boyles law
    1. AP1V1 = P2V2
    2. BDuring inspiration Alveolar Pressure drops and volume increases
    3. CDuring inspiration Pleural pressure increases (becomes more negative) and volume decreases
    4. D1,2,3 are correct
    5. E1,2 are correct
    6. F2,3 are correct

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ivenkat
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