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The Respiratory System

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  1. The Respiratory System Adela Genoves G510 Life Science for Middle School Educators

  2. What is the Respiratory System? • The organs and organ components that work together to enable us to breath.

  3. What is Breathing? • Breathing is the exchange of oxygen and carbon dioxide to and from our body. Oxygen Carbon dioxide

  4. Interesting Point about Breathing • With every breath, more than 15 ounces (500 ml) of air is taken into the lungs.

  5. The Lungs • The Lungs are spongy organs • The Lungs rest on the diaphragm, a muscle that helps with bringing in and pushing out air • The Lungs provide the meeting site between Capillaries and Alveoli

  6. Thorac0-Abdominal Diaphragm • The diaphragm acts as a partition between the cavity of the chest and that of the abdomen. • It is the chief muscle used in respiration, it is relaxed and dome-shaped during exhalation. • During inhalation it contracts, pulling downward, and with the combined contraction of the chest muscles allows the chest cavity to expand.

  7. The Respiratory System

  8. Gas Exchange- Breath-In OXYGEN • Oxygen is transferred to capillaries that carry red blood cells from the Lungs to Heart. From the Heart, the oxygen rich blood is circulated throughout the body. http://www.youtube.com/watch?v=1J8KFmoylEs

  9. Gas Exchange- Breath Out Carbon dioxide • Carbon dioxide is a waste product made in our body • Blood cells deliver Carbon dioxide to the Lungs where it travels out from the body http://www.youtube.com/watch?v=vu_ONM3Bj9A

  10. Capillaries • Capillaries are delicate vessels with fine walls that facilitate the exchange of gases between the blood and the tissues.

  11. Red Blood Cells • The main function of red blood cells, or erythrocytes, is transporting oxygen to the cells. • Red blood cells contain a molecule called hemoglobin, to which oxygen binds until it reaches its destination.

  12. Respiratory System in Action http://www.youtube.com/watch?v=ps64D3Juv5A

  13. Questions? • Thank you!

  14. References • http://images.google.com/imgres?imgurl=http://www.rkm.com.au/imagelibrary/thumbnails/oxygen-green-150.jpg&imgrefurl=http://www.rkm.com.au/imagelibrary/index.html&usg=__SWlXWSkWVBziDge5Fr-YG96I8_8=&h=150&w=150&sz=17&hl=en&start=89&um=1&tbnid=XU5CsSQ2pBGe2M:&tbnh=96&tbnw=96&prev=/images%3Fq%3Doxygen%2Bmolecule%26start%3D72%26ndsp%3D18%26um%3D1%26hl%3Den%26sa%3DN • http://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Lungs_diagram_simple.svg/483px-Lungs_diagram_simple.svg.png • http://www.daviddarling.info/encyclopedia/C/capillary.html • http://www.stemnet.nf.ca/~dpower/resp/exchange.htm#Internal • http://www.medicinenet.com/emphysema/article.htm • http://en.wikipedia.org/wiki/Diaphragm_(anatomy) • http://www.harunyahya.com/books/science/blood_heart/images/red_blood_cell_9.jpg • http://www.pennhealth.com/health_info/images/19443.jpg • http://images.google.com/imgres?imgurl=http://www.biology4kids.com/extras/dtop_micro/7315_580.jpg&imgrefurl=http://www.biology4kids.com/extras/dtop_micro/7315.html&usg=__9e27ODu4mLpchlfu144qIt3vOA0=&h=435&w=580&sz=25&hl=en&start=9&um=1&tbnid=BY42bsm6Si2xdM:&tbnh=101&tbnw=134&prev=/images%3Fq%3Dred%2Bblood%2Bcell%26hl%3Den%26sa%3DG%26um%3D1 • http://i271.photobucket.com/albums/jj160/cutiexxanne/Forest.jpg

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