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Mechanism of breathing

Quiz by gayatri devi

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15 questions
Show answers
  • Q1
    In which part of respiratory tree, gas exchange does not occur?
    respiratory zone
    conducting zone
    30s
  • Q2
    exchange of gases between enivornment and lungs is called
    pulmonary diffusion
    pulmonary ventilation
    30s
  • Q3
    Outflow of air from lungs into atomsphere is
    inspiration
    expiration
    30s
  • Q4
    muscle which involved during quiet inspiration
    external intercoastal
    internal intercoastal
    30s
  • Q5
    The area between the lungs is known as
    mediastenum
    pleura
    30s
  • Q6
    How many generations present in tracheobronchial tree?
    13
    23
    25
    20
    30s
  • Q7
    sheet of muscle at the bottom of the ribcage is
    intercoastal muscles
    diaphragm
    30s
  • Q8
    Number of alveoli in human lung is
    700million
    300million
    30s
  • Q9
    In human beings, rib cage and sternum move upward and outward during
    expiration
    exercise
    inspiration
    rest
    30s
  • Q10
    which muscle get flattens as it contracts during inspiration?
    Diaphragm
    internal intercoastal
    external intercoastal
    30s
  • Q11
    During inhalation, the lungs expand, and there is a drop in
    intrapulmonary pressure
    pleural pressure
    30s
  • Q12
    pressure present inside the alveoli is
    intrapulmonary pressure
    intrapleural
    30s
  • Q13
    During quiet inspiration, the intrapulmonary pressure is,
    -2.5mmHg
    -1mmHg
    +1mmHg
    0mmHg
    30s
  • Q14
    When the respiratory muscles are relaxed, the normal pleural pressure is
    2.5mmHg
    -2.5mmHg
    30s
  • Q15
    During inspiration due to expansion of the chest wall, the pleural pressure is
    -2.5mmHg
    -6mmHg
    30s

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