Fill in the blank on a similar pattern.
'C' shaped cartilage rings and ________.
'C' shaped cartilage rings and ________.
trachea is a kind of flexible tube like structure also known
as wind pipe.
Struc: it is
about 12 cm long and 2.5 cm wide. It lies in front of the oesophagus and
extends
downwards to neck. It extends from the larynx to the middle of thoracic
cavity where it
divides into the bronchi. The wall
of trachea is made up of fibrous muscular tissue
supported by C – shaped cartilage rings, which are 16-20 in number. They
reinforce and
provide rigidity to the tracheal wall to ensure that the trachea remains
open all the
time.
Func: as
trachea is internally lined with ciliated epithelium and mucous glands, so if
any
foreign particle or dust particle enters, it gets trapped by the mucus and immediately
expelled out either by coughing action or may get swept towards the
larynx and enter
in oesophagus where it gets expelled during defecation.
trachea is a kind of flexible tube like structure also known as wind pipe.
Struc: it is about 12 cm long and 2.5 cm wide. It lies in front of the oesophagus and extends
downwards to neck. It extends from the larynx to the middle of thoracic cavity where it
divides into the bronchi. The wall of trachea is made up of fibrous muscular tissue
supported by C – shaped cartilage rings, which are 16-20 in number. They reinforce and
provide rigidity to the tracheal wall to ensure that the trachea remains open all the
time.
Func: as trachea is internally lined with ciliated epithelium and mucous glands, so if any
foreign particle or dust particle enters, it gets trapped by the mucus and immediately
expelled out either by coughing action or may get swept towards the larynx and enter
in oesophagus where it gets expelled during defecation.
