PinkMonkey Online Study Guide-Biology
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Figure 17.2 A. Nasal passage and pharynx
Interior of the larynx
(iv) Trachea or windpipe is a tube about
4" long running from the larynx to the lungs. It is supported
by C-shaped cartilages which keep the trachea distended. It is internally
lined by cilia beating upwards, driving out dust particles.
On entering the thorax, the trachea divides into two branches called
bronchi, each entering the lung on its side.
(B) Respiratory organs (lungs)
Figure 17.3 Situation of the lungs
Table of Contents
Gaseous Exchange and Transport
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