pulmonary ventilation
Inflow and outflow of air between the atmosphere and the lung AKA breathing
Total Lung Capacity
Volume of air in the lungs after a maximum inhalation
Vital Capactiy
Maximum of volume of air that can be exhaled after a maximum inhalation.
Tidal Volume
Volume of air breathed in and out in any one breath
Expiratory reserve Volume
volume of air in excess of tidal volume that can be exhaled forcibly
Inspiratory reserve volume
Amount of air that can be forcefully inhaled after a normal tidal volume inhalation
Residual volume
The volume of air remaining in lungs after maximum exhalation
Inhalation
the act of taking in air as the diaphragm contracts and pulls downward; the size of the thoracic cavity increases
exhalation/expiration
breathing out. the diaphragm and intercostal muscles relax which then forces air out of the lungs; the size of the thoracic cavity decreases
non respiratory air movements
reflex or voluntary movements of air such as sneezing, coughing, laughing, hiccups, crying, yawning,
spirometer
device that measures respiratory capacities
gas transport
respiratory gases move through the body in the bloodstream; oxygen is attached to hemoglobin and carbon dioxide is carried in the plasma
Haemoglobin
The protein that carries oxygen in the red blood cells.
Asthma
chronic lung disease that causes inflammation and constriction of the airways
Acute Bronchiolitis
inflammation of the bronchial tubes usually caused by a virus
COPD (chronic obstructive pulmonary disease)
A group of lung diseases that block airflow and make it difficult to breathe.
Emphysema
loss of elasticity in alveoli leads to shortness of breath
pneumonia
lung infection that causes alveoli to fill with fluid or pus, making it difficult to breathe; caused by bacteria, virus, or fungus