Answer: The lungs, nose and the wind pipe are the main respiratory organs. We inhale and exhale air through our nose, which is transmitted to and from our lungs through the wind pipe. The lungs pick up oxygen from the air and flush out carbon dioxide from our body.
Answer: Your respiratory system starts at at your nostrils and mouth, where oxygen goes in. It then passes into the pharynx and trachea and then into the right and left bronchi, which branch into smaller bronchioles, and finally into the millions of tiny alveoli. Actual gas exchange takes place in the alveoli.
Answer: Crayfish breathe using gills, which are located between the carapace (the exoskeleton of the cephalothorax) and the lateral body wall, in the branchial chamber.
Oxygen and carbon dioxide are exchanged between the blood and water across the gill surface as water is circulated through the branchial chamber by the beating of the gill bailer on the second maxilla.
Answer: the real list would be too long to type the principal organs, though, are the:nose, pharynx, larynx, trachea, bronchi, and lungs go here: http://en.wikipedia.org/wiki/File:Respiratory_system_complete_en.svg for a picture of the complete respiratory system
Answer: Your trachea, mouth and nose allow air to enter your body. They both filter the air. The nose filters the air by the cilia, and the mouth by mucus. Those help because they catch the dirt from the air and prevent it from going into your lungs. The air gets warmed by your nasal cavity into the trachea. Your epiglottis stops air going into your stomach. Your lungs are near your heart, and after air goes through your trachea, it goes in your bronchial tubes, which let air into your lungs Your bronchial tubes branch through your lungs. Alveoli are the little air sacs at the end of your bronchial tubes where air enters.
Answer: As with all mammals - of which the cheetah is one - the main organsof respiration are the lungs, where oxygen from the atmospherediffuses across the thin membrane separating the air in the ALVEOLI(the smallest, sac-like structures in the air-containing part ofthe lungs) into the bloodstream; and carbon dioxide - the productof the energy-producing reactions in the body - travels in theopposite direction, to be expelled to the atmoshere.
The heart is also important in respiration, as it is responsiblefor pumping de-oxygenated blood to the lungs, where it becomesoxygenated; and also drawing the oxygenated blood from the lungsand pumping it into the arterial system for distribution around thebody.