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Mariana Trench


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Mariana Trench

  1. 1. Mariana Trench Deep Oceans
  2. 2. Mariana Trench <ul><li>Deepest part of the earth’s oceans </li></ul><ul><li>3,6201 ft. deep </li></ul>
  3. 3. Environmental Conditions <ul><li>Little if any light left </li></ul><ul><li>No photosynthesis </li></ul><ul><li>Animal life is sparse </li></ul><ul><li>Pelagic sediment (composed of shells, animal skeletons, decaying microorganisms and plants.) </li></ul>
  4. 4. Environmental Conditions cnt.’d. <ul><li>Temperature decreases with increasing depth </li></ul><ul><li>3-4 degrees Celsius at 6,600 feet of water </li></ul>
  5. 5. Maximum Time Humans Can Cope <ul><li>Control over heart rate & other bodily functions </li></ul><ul><li>Umberto Pelizzari (5 min/200 feet) </li></ul><ul><li>Diving Graph </li></ul>
  6. 6. Three Body Systems Most Affected/their reactions <ul><li>Respiratory (or pulmonary) system </li></ul><ul><li>Cardiovascular (or circulatory) system </li></ul><ul><li>Ears and sinuses </li></ul>
  7. 7. Respiratory (or pulmonary) system <ul><li>Breathes in oxygen while submerged into the water </li></ul><ul><li>Lungs become over pressurized (tear) </li></ul><ul><li>Air enters tissue & blood stream. </li></ul><ul><li>Cause rupture of alveoli and capillaries, mixing blood & air into the lungs, which can then lead to person coughing up blood. </li></ul>
  8. 8. Cardiovascular (or circulatory) system <ul><li>Carotid-sinus receptors </li></ul><ul><li>Monitor blood pressure . </li></ul><ul><li>Less blood flows to the brain . </li></ul><ul><li>Symptoms are discomfort, light-headedness and eventually loss of consciousness . </li></ul>
  9. 9. Ears and sinuses <ul><li>Ears, sinuses, or teeth </li></ul><ul><li>Pressure increases and the middle ear or sinuses are “squeezed” under pressure . </li></ul><ul><li>Squeezing your nose and breathing out . </li></ul><ul><li>Sudden pain and onset to the ear </li></ul>
  10. 10. Proper Clothing & Special Equipment Required <ul><li>Diving Suit </li></ul><ul><li>Breathing Apparatus </li></ul><ul><li>Surface Supplied Equipment </li></ul>