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MAMMARY GLANDS FOR DIFFERENT SPECIES

MAMMARY GLANDS FOR DIFFERENT SPECIES. Leo Timms Iowa State University. MAMMARY GLANDS. Similar development Similar hormones Species differences Similar anatomy - epithelium ( duct/secretory) - myoepithelial tissue - stromal tissue WHAT ABOUT TEATS? #? PLACE?. MAMMARY GLANDS.

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MAMMARY GLANDS FOR DIFFERENT SPECIES

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  1. MAMMARY GLANDSFOR DIFFERENTSPECIES Leo Timms Iowa State University

  2. MAMMARY GLANDS • Similar development • Similar hormones • Species differences • Similar anatomy - epithelium ( duct/secretory) - myoepithelial tissue - stromal tissue • WHAT ABOUT TEATS? #? PLACE?

  3. MAMMARY GLANDS • Monotremes: no teats, lots of tubes!

  4. MAMMARY GLANDS • Other classes: Teats - Different locations - Different numbers - Different # nipple openings / teat

  5. MAMMARY GLANDS thoracic inguinal abdominal

  6. MAMMARY GLANDS • 4 abdominal; 15 openings / teat

  7. MAMMARY GLANDS • Developmentally independent glands

  8. MAMMARY GLANDS • 13 abdominal; 8 openings / teat

  9. MAMMARY GLANDS • 2 thoracic, 6 abdominal, ; 3-7 openings / teat

  10. MAMMARY GLANDS • 2 thor., 6 abdom. 2 ing., ; 8-10 openings/ teat

  11. MAMMARY GLANDS • 4 thor., 2 abdom. 4 ing., ; 1 opening/ teat

  12. MAMMARY GLANDS • 2 inguinal ; 1 opening/ teat

  13. MAMMARY GLANDS • 2 inguinal ; 2 openings/ teat

  14. MAMMARY GLANDS • 4 inguinal ; 1 opening/ teat

  15. MAMMARY GLANDS • 2 inguinal ; 1 opening/ teat

  16. MAMMARY GLANDS • 4 thor., 6 abdom. 2 ing., ; 2 openings/ teat

  17. MAMMARY GLANDS • 2 thoracic ; 15-25 openings/ teat

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