How respiratory system birds works - pet health care, The avian respiratory system differs from that of mammals. birds have lungs, air sacs, a syrinx, and their respiration requires two cycles to move a volume of air.. The respiratory system: interactive activity, Label the parts/organs of the respiratory system by dragging the labels to their appropriate boxes. Respiratory system insects - wikipedia, An insect's respiratory system is the biological system with which it introduces respiratory gases to its interior and performs gas exchange.
Movie: lungs & respiratory system - kids health, Watch movie respiratory system, system enables breathe.. http://kidshealth.org/en/kids/rsmovie.html Respiratory system | definition respiratory system , System [sis´tem] 1. set series interconnected interdependent parts entities (objects, organs, organisms) act common purpose . http://medical-dictionary.thefreedictionary.com/respiratory+system Respiratory system - users.rcn., The human respiratory system pathway. air enters nostrils; passes nasopharynx, oral pharynx; glottis; trachea. http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Pulmonary.html