Respiratory System Flashcards
Mediates the uptake of oxygen and releases carbon dioxide through breathing (ventilation)
The Respiratory System
Has a layer of aqueous surfactant that acts as a medium for gas exchange and maintains surface tension to prevent the collapsing of the lungs
Alveolus
Has 3 lobes (Superior, Middle, Inferior)
Right lung
Has 2 lobes (Superior, Inferior)
Left lung
membrane that encases each lobe of the lung
Pleura
the pleura membrane is surrounded by this
Pleural Fluid
Sends low oxygen, high carbon dioxide blood to lungs to pick up oxygen and drop off carbondioxide
The Heart
the gas exchange between the lungs and capillaries occurs by…
Diffusion
the process by which molecules move from areas of high concentration to areas of low concentration
Diffusion
breathing air in is called…
Inspiration
breathing air out (exhaling) is called…
Expiration
the amount of air breathed in and out of the lungs
Tidal Volume
small amount of air trapped in alveoli after expiration
Residual Capacity
the part of the brain that controls respiration by monitoring CO2 and blood pH levels
Medulla Oblongata
when diaphragm/intercostal rib muscles contract, lung volume…
Increases
