The upper tract starts at the nose and naval cavity or mouth and ends at the pharynx; the lower tract begins at the larynx and ends at the alveoli. The first section of the airway is the main opening of the respiratory system: the nose and naval cavity. The nose is on the outside of the body and is made of cartilage, bone, muscle and skin. It covers the front of the nasal cavity which is a space with...
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...hemoreceptors notice changes in the chemical composition of blood and stimulate ventilation. Mechanoreceptors respond to pressure or distortion in physical setting which also stimulate ventilation that will fix the present problem.
The respiratory system is an amazing body system. When the respiratory system is mentioned, it is common for people to only think about breathing, but there is so much more to it. The respiratory system works with other systems to allow the body to stay alive and well; all of the components of the system work together to make life possible. The many different processes of the respiratory system maintain overall homeostasis of the body. The average person who lives to be eighty years will take about 672,768,000 breaths in their entire lifetime. Over time, the respiratory system wears down, but it doesn’t stop working to keep you alive
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