Share Respiratory System
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Where are the lungs located?
Within the thoracic cavity.
Respiration is the movement of ....
air in and out of the lungs. (Pass oxygen into the circulatory system (to produce ATP). remove carbon dioxide from the circulatory system.)
The main muscles involved in breathing are... (3)
Diaphragm, internal and external intercostal muscles
Surrounding each alveolus are ...
a network of capillaries
During inhalation, what is the action of the diaphragm?
Contracts, flattens and moves down.
What is missing: 'nose, ...., larynx, ......, bronchi, bronchioles, alveoli'
Pharynx, Trachea
Where does gaseous exchange take place?
Alveoli
Diffusion is the movement of molecules from an area of ..... concentration to an area of ....concentration.
higher, lower
What is the percentage of CO2 during exhalation? (0.04%, 4%, 14%)
4%
Gaseous exchange is the diffusion of which gasses?
carbon dioxide and oxygen
