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.
structure of upper respiratory system. conists of two parts: upper respiratory system-includes nose, pharynx, and associated structures lower respiratory system-includes larynx, trachea, bronchi, and lungs.nclude nose, pharynx, larynx, trachea, bronchi, bronchioles and terminal bronchioles, their function is to filter, warm, and moisten air and conduct it into the lungs respiratory zone-consists of tissues within the lungs where gas exchange occurs.