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Transcript of Breathing
exchange in a mammal Adaptations -Diving animals have the ability to store
great amounts of oxygen
-Weddell Seal can hold double the amount of
oxygen per kg of body mass compared to humans
-the capability of swimming with minimal muscle movement Medical Facts -Diseases or conditions regarding the respiratory system like lung cancer and asthma are caused by the inhalation of irritating chemicals, cigarette smoke
-The overall risk for lung cancer is 1 in 13 for men and 1 in 16 for women http://ilovepoppyrose.blogspot.ca/2011/05/how-cute-is-this.html http://animals.nationalgeographic.com/animals/mammals/humpback-whale/ Medulla Oblongata Breathing Control Center http://www.austincc.edu/apreview/NursingPics/RespiratoryPics/Picture36.jpg Composed of tracheal rings made of cartilage How humans breathe Negative pressure breathing - changing air pressure in the lungs relative to the pressure of the atmosphere.
Inhalation - contraction of the rib muscles and diaphragm.
Exhalation - relaxation of the rib muscles and diaphragm. Questions? Works Cited:
Reese, J., Urry, L., Cain, M., Wasserman, S., Minorsky, P., & Jackson, R. 2011. Campbell Biology (Custom edi., pp. 184–203). Boston: Pearson Learning Solutions.
Zimmerman KA. 2012. Live Science. [2012; Jan 12 2012]. Available from: http://www.livescience.com/22616-respiratory-system.html Bronchi Left Bronchus Right Bronchus Bronchioles http://felipepolanco.com/2012/5/11/dont-forget-to-breathe.html