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Gas Exchange in the Body

Gas Exchange in the Body. By John Siemering, Chris Cua, and Colin Hull. The Alveolar Level    . Alveolus - (singular, plural- alveoli) tiny, thin walled air sac at the end of the bronchiole branches where gas exchange occurs. 

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Gas Exchange in the Body

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  1. Gas Exchange in the Body By John Siemering, Chris Cua, and Colin Hull

  2. The Alveolar Level     • Alveolus- (singular, plural- alveoli) tiny, thin walled air sac at the end of the bronchiole branches where gas exchange occurs.  • Respiration- the process where gas exchange occurs between the air outside and bodily cells.

  3. Diffusion of Oxygen and Carbon Dioxide at the Alveolar Level

  4. Diffusion across the Capillary Membrane Oxygen and Carbon Dioxide Passively flow across the capillary membrane because of a pressure gradient flowing from the alveoli sacs to the red blood cells.  • P oxygen in alveoli > P oxygen in red blood cells • P carbon dioxide in alveoli < P carbon dioxide in red blood cells

  5. Hemoglobin and Red Blood Cells • Hemoglobin molecules are the part of Red Blood cells which transports oxygen to the bodies organs • Iron atoms in Hemoglobin bond with the oxygen and allow red blood cells to carry oxygen which has been diffused through the alveolar membrane through the circulatory system

  6. General Information Iron is essential to the body's production of hemoglobin Without enough iron the body can't produce enough hemoglobin for red blood cells Therefore there is not enough oxygen given to the cells Causes Iron poor diet Menstruation Frequent blood donations  Endurance training Treatment Iron supplements recommended by a doctor. Symptoms Fatigue and loss of energy Head aches Difficulty concentrating Dizziness  Pale skin  Leg cramps  Hunger for strange substances such as paper, ice, or dirt.  Upward curvature of the nails referred to as koilonychias. Soreness of the mouth with cracks at the corners. Iron Deficiency Anemia

  7. Bibliography • Starr, Cecie. Biology: The Unity and Diversity of Life. Pacific Grove: Brooks/Cole Publishing Company, 2001.  • Freudenrich, Craig, and Ph.D.. "HowStuffWorks "How Your Lungs Work"." Howstuffworks "Health". N.p., n.d. Web. 10 Nov. 2009. http://health.howstuffworks.com/lung2.htm • Bryg, Robert J. "Anemia Causes, Types, Symptoms, and Treatment Information on WebMD.com." WebMD - Better information. Better health.. N.p., 14 Dec. 2008. Web. 11 Nov. 2009. <http://www.webmd.com/a-to-z-guides/understanding-anemia-basics?page=3>.

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