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Cartilaginous rings
Trachea has a C-shaped cartilaginous ring.
The trachea is reinforced with cartilaginous rings in order to retain the shape while breathing and the rings are incomplete to allow the trachea to expand and move when food passes through the esophagus and while bending the neck.
The trachea has cartilaginous rings or Tracheal rings to support its structure and maintain a hollow interior in all positions.~Pain ^_^
In a pig's trachea, the cartilaginous rings are complete upon birth. In men and women, the cartilaginous rings are not complete.
The function of the cartilaginous rings in pigs is to provide adequate support for the trachea. Without the cartilaginous ring the pig would be in danger of their throat collapsing when the animal inhales and exhales.
incomplete
Frederick Rings has written: 'Reinforced concrete, theory & practice' -- subject(s): Accessible book, Reinforced concrete
Cartilaginous rings
The trachea has cartilaginous rings. The esophagus does not.
The function of cartilaginous rings in a trachea is to prevent collapse of trachea. The trachea shouldn't not collapse if so you will die due to suffocation.
The windpipe is composed of cartilaginous rings that resemble the flexible portion of a bendy straw.