what is trachea???????
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A LARGE MEMBRANEOUS TUBULAR PIPE REINFORCED BY THE CARTILAGE , EXTENDING THE LARYNX TO THE BRONCGILES TO THE WIND PIPE TO LUNGS TO CARRY AIR TO BREATHE !
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(1) The trachea or windpipe is about 10-12 cm long and 2.5 cm wide.
(2) It is sittuated in front of the oesophagus and runs downwards in the thorax.
(3) Fibrous muscular tissue supported by C shaped cartillages form the walls of the trachea.
(4) 16 tO 20 cartilage rings are present in the trachea.
(5) The trachea is lined internally by ciliated epithelium and mucous glands
(6) Mucous and ciliary action remove the dust particles and push them upwards to the larynx. These particles are then gulped and taken into the oesophagus. Instant coughing can remove foreign particles that enter the trachea
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