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Title: Gaseous Exchange in humans
Description: this notes pertain to biology made easy and deeply define words with diagram
Description: this notes pertain to biology made easy and deeply define words with diagram
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Gaseous Exchange in humans
in humans and other higher animals the exchange of gases is carried out by the
respiratory system
...
e the air
passage wany and the lungs
...
this passage of air consists of the
following parts
...
it opens to the outside through the openings called
the nostrils
...
Each portion is
lined by fine hairs and mucous which filter the dust particles from the air
...
the nasal cavity opens into the pharynx by means of two small openings called
internal nostrils
...
in
extend to the opening of the esophagus and the larnyx
...
we know that glottis is a narrow
opening at the floor of pharynx which leads into larnyx
...
Recalling:
The Glottis is guarded by a flap of tissues called the epiglottis
...
it is present between pharynx and trachea
...
Title: Gaseous Exchange in humans
Description: this notes pertain to biology made easy and deeply define words with diagram
Description: this notes pertain to biology made easy and deeply define words with diagram