Respiratory Physiology Flashcards
inhalation
is the action of bringing air into the lungs
exhalation
action of air leaving the lungs
Pulmonary system
nasal cavity,
Nostrils
mouth
larynx
trachea
Right main bronchus
Right lung
Pharynx
left main bronchus
left lung
diaphragm
What is pressure gradient
As the thoracic cavity increases in size our lungs with it, result in decrease in alveolar pressure. Air will then have a net movement from the atmosphere into the lungs
pneumothorax
Explain gas exchange/ external respiration
between the alveolar air and the blood takes place at the pulmonary capillaries.
Normal respiration rate
is the number of breaths each minute when breathing normally
- 12-18 breath breath per minute
hyperventilation
above normal rate
hypoventilation
below respiration
Residual volume
When air gets squeezed out of the lung on an exhale there is some air that cannot be squeezed out of the lung
- 1.2 liters
dead air space
air can not be completely inhaled into the lungs and the air that cannot be fully exhaled from out body and does not interact with the alveoli
.15 liter
What level of percent expiratory flow indicates obstructive lung disease and why ?
People with obstructive lung disease typically have values that are less than 80%. They are having trouble removing air from the lungs since a smaller than 80 percent of the entire breath to be removed was out in the first one second of trying
Obstructive disorder
-reduction in airflow
-shortness of breath-un exhaling air
-Air will remain inside the lung after full expiration
-COPD, Asthma, Bronchiectasis
Restrictive disorder
-reduction in lung volume
-difficulty in taking air inside the lung
-due to stiffness inside the lung tissue or chest wall cavity
- Interstitial lung disease, Scoliosis, neuromuscular cause, marked by obesity
main force keeping our lungs inflated and causing our lungs to expand as our thoracic cavity expands
transpulmonary pressure
