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Worm Dissection
Worm Anatomy  <ul><li>The “1” arrow points to the worm’s clitellum, an organ responsible for mucus production during repro...
Worm Anatomy  <ul><li>The “2” arrow points to the worm’s dorsal blood vessel. </li></ul>
Worm Fact <ul><li>Worms tunnel deeply in the soil and bring subsoil closer to the surface mixing it with the topsoil. Slim...
Worm Anatomy  <ul><li>The “1” arrow points to the  intestine  region of the digestive system. </li></ul>
Worm Anatomy  <ul><li>The “2” arrow points to  gizzard  region of the digestive system.  </li></ul>
Worm Anatomy  <ul><li>The “3” arrow points to  crop  region of the digestive system.  </li></ul>
Worm Fact <ul><li>Worms are hermaphrodites. Each worm has both male and female organs. Worms mate by joining their clitell...
Worm Anatomy  <ul><li>The “4” arrows point to two of the worm's six  seminal vesicles  (located in segments 9-13), storage...
Worm Anatomy  <ul><li>The “5” arrows point to two of the worm's four  seminal receptacles  (located in segments 9 and 10),...
Worm Fact <ul><li>Did you know a worm has FIVE hearts? Now that's something to see </li></ul>
Worm Anatomy  <ul><ul><ul><li>The “6” arrow points to one of the worm's five pairs of  aortic arches , located in segments...
Worm Anatomy  <ul><ul><ul><li>The “7” arrow points to  esophagus  region of the digestive system. This organ extends throu...
Worm Anatomy  <ul><ul><ul><li>The “8” arrow points to  pharynx  region of the digestive system.  </li></ul></ul></ul>
Worm Anatomy  <ul><ul><ul><li>The “9” arrow points to the worm's  suprapharangeal ganglia  or &quot;brain&quot;. It loops ...
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Transcript of "Worm Presentation1"

  1. 1. Worm Dissection
  2. 2. Worm Anatomy <ul><li>The “1” arrow points to the worm’s clitellum, an organ responsible for mucus production during reproduction. </li></ul>
  3. 3. Worm Anatomy <ul><li>The “2” arrow points to the worm’s dorsal blood vessel. </li></ul>
  4. 4. Worm Fact <ul><li>Worms tunnel deeply in the soil and bring subsoil closer to the surface mixing it with the topsoil. Slime, a secretion of earthworms, contains nitrogen. Nitrogen is an important nutrient for plants. The sticky slime helps to hold clusters of soil particles together in formations called aggregates. </li></ul>
  5. 5. Worm Anatomy <ul><li>The “1” arrow points to the intestine region of the digestive system. </li></ul>
  6. 6. Worm Anatomy <ul><li>The “2” arrow points to gizzard region of the digestive system. </li></ul>
  7. 7. Worm Anatomy <ul><li>The “3” arrow points to crop region of the digestive system. </li></ul>
  8. 8. Worm Fact <ul><li>Worms are hermaphrodites. Each worm has both male and female organs. Worms mate by joining their clitella (swollen area near the head of a mature worm) and exchanging sperm. Then each worm forms an egg capsule in its clitellum. </li></ul>
  9. 9. Worm Anatomy <ul><li>The “4” arrows point to two of the worm's six seminal vesicles (located in segments 9-13), storage organs for sperm that the worm has produced. </li></ul>
  10. 10. Worm Anatomy <ul><li>The “5” arrows point to two of the worm's four seminal receptacles (located in segments 9 and 10), storage organs for sperm received from another worm. </li></ul>
  11. 11. Worm Fact <ul><li>Did you know a worm has FIVE hearts? Now that's something to see </li></ul>
  12. 12. Worm Anatomy <ul><ul><ul><li>The “6” arrow points to one of the worm's five pairs of aortic arches , located in segments 7-11. These &quot;hearts&quot; beat and pump blood from the dorsal to the ventral vessel. </li></ul></ul></ul>
  13. 13. Worm Anatomy <ul><ul><ul><li>The “7” arrow points to esophagus region of the digestive system. This organ extends through the aortic arch region and connects to the crop. </li></ul></ul></ul>
  14. 14. Worm Anatomy <ul><ul><ul><li>The “8” arrow points to pharynx region of the digestive system. </li></ul></ul></ul>
  15. 15. Worm Anatomy <ul><ul><ul><li>The “9” arrow points to the worm's suprapharangeal ganglia or &quot;brain&quot;. It loops around the pharynx to form the ventral nerve cord that extends the length of the worm. </li></ul></ul></ul>
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