Respiratory system Flashcards
How does the diagram change during inhalation
Contracts and flattens
How does the diagram change during exhalation
Relaxes and
becomes dome shaped
Gas Exchange
Where the waste product
carbon dioxide diffuses out
of the blood and oxygen
diffuses into the blood.
How is gas exchange possible
diffusion, partial pressure and concentration
gradients
Consequences of smoking
Irritation of the trachea and
bronchi
Damaged cilia
Nicotine constricts the
bronchioles
Carbon monoxide exposure
Damaged alveoli
Expiratory reserve volume
The amount of air that can be forcibly expelled after a normal breath
Tidal volume
the amount of air that moves into and out of the lungs during a normal breath
Inspiratory reserve volume
maximum amount of air that can be inhaled after a normal breath
Vital capacity
the maximum amount of air a person can exhale after inhaling as much air as possible
Residual volume
the amount of air that remains in the lungs after a person has exhaled as much as they can
What happens to tidal volume and minute ventilation during exercise
Increase
What happens to inspiratory reserve volume and
expiratory volume during exercise
Decrease
What happens to inspiratory reserve volume and
expiratory volume during exercise
Decrease
What happens to residual volume during exercise
Stays the same
Minute ventilation calculation
Tidal volume x respiratory frequency
