The choice to make PE determinations rests with each individual hospital (not with the state) and. is not dependent on whether the hospital (or the state) operates PE for other populations.
Relevance. Rating Newest Oldest. Best Answer: Trachea is the respiratory system supported by a rings of cartilage.. in animal, CO2 is considered as the gas released by the body cell and need to be exhaled out from the respitary system just like the human.. Source(s): Lollipop_mun Â· 8 years ago.
5. Trachea. The trachea is a cartilage tube and represents the initial part of the lower respiratory tract. It connects the pharynx and larynx to the lungs and allows normal passage of the air to and from the lungs.This tube is approximately 3.9 to 6.3 inches long and its inner diameter is around 0.83 to 1.1 inches.. Trachea. The trachea is a cartilage tube and represents the initial part of the lower respiratory tract. It connects the pharynx and larynx to the lungs and allows normal passage of the air to and from the lungs.