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Respiratory System
Sample Presentation
ORGANS
The main organs that make up the
respiratory system are:
• Mouth
• Nose
• Lungs
• Trachea
• Bronchi
• Diaphragm
Respiratory System
• The respiratory system supplies oxygen to the
blood, and in turn to every cell in the body.
Respiratory System
• Air pressure causes our body to breath in and
out, bringing oxygenated air into the lungs.
• Air follows the pathway below:
–
–
–
–
–
Mouth/nose
Larynx
Trachea
Bronchi
Lungs
Respiratory System
• Within the lungs, the bronchi branch into
smaller bronchi and even smaller tubes
called bronchioles.
• Once inside the lungs, oxygen is extracted
from the air and passes to the blood
stream, where it enters the cardiovascular
system.
Fun Facts
• The breathing rate in women and children
is faster than in men.
• When you yawn more oxygen goes into
your lungs.
• Breathing is an involuntary action,
controlled by air pressure and the
diaphragm.
Fun Facts
• Our lungs can hold up to 6 liters of air.
• The right lung is slightly larger than the
left. Does anyone know why?
• A person at rest usually breathes between
12 and 15 times a minute
Respiratory System
Video
• http://www.wisconline.com/objects/ViewObject.aspx?ID=A
P15104.