105 Flashcards
105
what is tidal volume
amount of air displaced beween in and out breat (~500ml)
105
what is inspiratory reserve volume
extra air above tidal volume during deep breathing (up to 300ml)
105
what is functional residual capacity
air left in lungs after maximal expiration
105
what is residule volume
air left in lungs after forced expiration
105
what is vital capacity
the maximal amount expired from the lungs after maximum inhilation
105
what is total lung capacity
the maximum volume the lungs can expand to on inhilation
105
where do you get turbulent airflow
in the trachea
105
where do you get transitional airflow
in the bronchus
105
where do you get laminar airflow
in the bronchioles
105
where counts for 90% of airway resistance
the central airways
105
which airways make up the conducting zones
trachea, bronchi, bronchioloes, terminal bronchioles
105
which airways make up the transitional and respiratory zones ( where gas exchange occurs)
respiratory bronchioles, alveolar ducts and alveolar sacs
105
typical tidal volume
450ml
105
whats the benfit of a trachostomy tube
it bipasses the dead space and so improves ventilation
