The Respiratory System
, Organs of the Respiratory
system
• Nose
• Pharynx
• Larynx
• Trachea
• Bronchi
• Lungs –
alveoli
Figure 13.1
, Function of the Respiratory
System
• Oversees gas exchanges between the
blood and external environment
• Exchange of gasses takes place within
the alveoli
• Passageways to the lungs purify, warm,
and humidify the incoming air
, The Nose
• The only externally visible part of the
respiratory system
• Air enters the nose through the external
nares (nostrils)
• The interior of the nose consists of a nasal
cavity divided by a nasal septum
, Organs of the Respiratory
system
• Nose
• Pharynx
• Larynx
• Trachea
• Bronchi
• Lungs –
alveoli
Figure 13.1
, Function of the Respiratory
System
• Oversees gas exchanges between the
blood and external environment
• Exchange of gasses takes place within
the alveoli
• Passageways to the lungs purify, warm,
and humidify the incoming air
, The Nose
• The only externally visible part of the
respiratory system
• Air enters the nose through the external
nares (nostrils)
• The interior of the nose consists of a nasal
cavity divided by a nasal septum
