Biology

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30 Questions - Developed by: V - Developed on: - 897 taken

  • 1
    - Parallelogram illustrates the function of the diaphragm and abdominal muscles
     True
     False
  • 2
    - Hering model of breathing illustrates also effects of a high negative and positive pressures on the filling of the large veins in the chest
     True
     False
  • 3
    - The air flows to the lungs during the inspiration due to the positive intrathoracic pressure produced by respiratory muscles
     True
     False
  • 4
    - An expiratory airflow within the airways is not produced by pressure difference
     True
     False
  • 5
    - An airflow within the airways is influenced by a lung compliance and the airways resistance
     True
     False
  • 6
    - During quiet breathing both the pleural and intrapulmonary pressures are always kept negative
     True
     False
  • 7
    - At quiet breathing the value of the intrapleural pressure is always negative (comparing with atmospheric pressure)
     True
     False
  • 8
    - At the beginning of inspiration the intrapulmonary pressure increases
     True
     False
  • 9
    - An interpleural pressure is higher than the atmospheric pressure
     True
     False
  • 10
    - An airflow within the airways is measured in l / min (eventually in ml / s)
     True
     False
  • 11
    - A value of an inspiratory air volume depends on inspiratory airflow and the duration of inspiration
     True
     False
  • 12
    - A ventilation is performed by rhythmic activation and relaxation of smooth muscles
     True
     False
  • 13
    - During the inspiration, volume of the chest decreases and volume of the lungs increases
     True
     False
  • 14
    - The most important inspiratory muscle is the external intercostal muscle ( musculus intercostalis externus)
     True
     False
  • 15
    - The distribution represents particularly a mixing of inhaled air with the air which remained in the airways and the lungs after the expiration
     True
     False
  • 16
    - During the inspiration, negative intrapulmonary pressure leads to the positive value of pleural pressure
     True
     False
  • 17
    - The lung compliance is expressed in kPa / l
     True
     False
  • 18
    - Quiet expiration is produced by a contraction of abdominal muscles
     True
     False
  • 19
    - Alveolar ventilation = minute ventilation – death space (death volume)
     True
     False
  • 20
    - During the diffusion within the lungs, the pressure gradient of O2 is approximately 60 kPa and the pressure gradient of CO2 is approximately 6 kPa
     True
     False
  • 21
    - The pressure gradients for oxygen and carbon dioxide between the alveoli and pulmonary capillaries are in the opposite directions
     True
     False
  • 22
    - A bronchoconstriction (e.g. in asthma bronchiale) makes the breathing more because lower compliance of the lungs
     True
     False
  • 23
    - Minute ventilation can be calculated as number of breaths per minute (respiratory rate) multiply by alveolar ventilation
     True
     False
  • 24
    - An anatomical death space is approximately 250 ml in healthy adult
     True
     False
  • 25
    - An anatomical death space is the volume of the air that does not reach alveolus during the inspiration
     True
     False
  • 26
    -(2015) Intrapulmonary pressure decrease during the course of expiration
     True
     False
  • 27
    - (2015) A bronchoconstriction (e.g. in asthma bronchiale) makes the breathing more difficult because higher airway resistance
     True
     False
  • 28
    -(2015)The parallelogram illustrates respiratory function of intercostal muscles
     True
     False
  • 29
    -(2015) During forceful expiration abdominal muscles usually contract.
     True
     False
  • 30
    -(2015) diaphragm is the most important muscle in expiration
     True
     False

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