Respiration Flashcards
What are the three main functions of the respetory system?
It is responsible for sufficient oxygen supply needed by all cells in the body
Help maintain the pH of the blood plasma providing an outlet for CO2
Regulation of the body temprature
What binds the lungs to the chest wall?
Double layer of pleurae.
visceral pleura attached to the surface of the lung, and the pariental to the chest wall
Define static lung volumes
reflecting the amount of inspired and expired air and providing information about the strength of the respiratory muscle
Define dynamic measurements
Data from the flow rate of expired and inspired air, and reflects on the state of the airways
Define tidal volume
The amount of air that moves into the lungs with each inspiration, or amount that moves out with each expiration
Inspiratory reserve volume
The air inspired with a maximal inspiratory effort at the end of a passive tidal expiration
Expiratory reserve volume
the volume exhaled by an active expiratory effort at the end of a passive tidal expiration
Residual volume
Some air is left in the lungs after an expiration with the maximat effort
Total lung capacity
All the compontents added togheter
Vital capacity
Maximum amount of air expired from the fully inflated lung, or maximun inspiratory level
Inspiratory capacity
Maximum amount of air that can be inspired from the resting end-expiratory level
Functional residual capacity
the volume of air remaining in the lungs after expiration of normal, resting breath
Forced vital capacity
The largest amount of air that can be expired after a maximal inspiratory effort. (gives info about the strength of the respiratory muscles and other aspects)
FEV1
The major fraction of vital capacity is already exhaled during 1 second
Maximal voluntary ventilation
largest volume of gas that can be moved into and out of the lungs in 1 min. by voluntary effort.
