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14 Cards in this Set
- Front
- Back
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What is spirometry?
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Test to measure vital capacity, flow rate and FEV1
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What is the inspiratory and expiratory reserve volume?
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IRV - The amount of air more the lungs can take in above that of normal inspiration
ERV - Amount which can be breathed out more then normal expiration |
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What is residual volume and how can it be measured?
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The amount of air left in the lung after maximal expiration
Helium dilution |
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What is vital capacity, inspiratory capactity and functional residual capacity?
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FVC - Maximum inspiration to maximum expiration volume (IC + FRC)
IC - Resting expiration to maximal inspiration FRC - Resting expiration to completely empty lung (expiratory reserve + residual volume) |
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What is the difference between ventilation rate and respiration trate?
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Vent. rate is the amount of air move in and out of the lungs in 1 minute, respiration rate is the normal of breaths taken in a minute
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What does a nitrogen washout achieve and how is it preformed?
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Gives us the serial dead space volume, a person breaths in pure oxygen and then breaths out into a device that detects nitrogen - When nitrogen is detected the volume breathed out before that is the dead space volume
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What is the conducting portion of the airway and the respiratory portion?
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nose -> terminal bronchioles
Respiratory bronchioles -> alveoli |
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Clara cells replace goblet cells in the smaller bronchioles. What is the function of clara cells?
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They act to replace damage cells and are protective in function, they also secrete surfactant
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What parts of the airway do pseudostratified columnar epithelium cover?
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Nose -> largest bronchioles
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What epithelium line the smaller bronchioles?
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Columnar with cillia and clara cells
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What epithelium line the respiratory bronchioles and alveolar ducts?
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Cuboidal with clara cells and sparsely scattered cilia
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Tpye II pneumocytes secrete what?
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Surfactant
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As olfactory cells, uni, multi or bipolar nerve cells?
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Bipolar
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What ype of secretion comes from olfactory glands to flush odours?
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Serous
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