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Histology 4: The Female Reproductive System: Placenta and Mammary Gland

Histology 4: The Female Reproductive System: Placenta and Mammary Gland. Per Brodal Institutt for medisinske basalfag Universitetet i Oslo. 9th Semester 2008. Endometrium: Secretory Phase. Endometrium: Secretory Phase. Spiral arteries Low Power. Field seen in next slide.

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Histology 4: The Female Reproductive System: Placenta and Mammary Gland

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  1. Histology 4: The Female Reproductive System: Placenta and Mammary Gland Per Brodal Institutt for medisinske basalfag Universitetet i Oslo 9th Semester 2008

  2. Endometrium: Secretory Phase Per Brodal 2008

  3. Endometrium: Secretory Phase Per Brodal 2008

  4. Spiral arteries Low Power Field seen in next slide Per Brodal 2008

  5. Spiral Arteries in the Endometrium Per Brodal 2008

  6. Implantate: Decidual reaction Per Brodal 2008

  7. Decidual Reaction, Close up Large, roundeddecidualcellswith pale cytoplasm and large, pale nuclei. Per Brodal 2008

  8. Implantate Secondary villi Endometrium Intervillous spaces Per Brodal 2008

  9. Implantate, Enlarged Extra-embryonic mesoderm in villus Cytotrophoblast Syncytiotrophoblast Intervillous space Per Brodal 2008

  10. Feto-maternaltransitionzone Chorion Decidua Extravillous trophoblasts Per Brodal 2008

  11. Implantate, Close Up Syncytiotrophoblast Cytotrophoblast Extra-embryonic mesoderm (mesenchym) Per Brodal 2008

  12. Placenta (~ 6 weeks) Stem villus Chorionic villus Chorionic plate Per Brodal 2008

  13. Syncytiotrophoblast Cytotrophoblast Capillary Intervillous space (maternal blood) Per Brodal 2008

  14. Villus with capillary Brush border (microvilli) on syncytiotrophoblasts Capillary (Fetal erythrocytesnucleated) Per Brodal 2008

  15. Umbilical Artery Mesenchyme Arterial wall Per Brodal 2008

  16. Mesenchyme (Umbilical Cord) Per Brodal 2008

  17. Mamma and the Mammary Gland Per Brodal 2008

  18. Mammary line Proliferation of epthelial cells (mammary ridge) Epidermis Mesenchyme Positions of accessory nipples Mammary line Lactiferous duct (15-20) Langman Per Brodal 2008

  19. Mamma Pectoral muscle Adipose tissue (lobulated) Ductus lactiferus Sinus lactiferus Areola Glandular tissue Suspensory ligaments Papilla mamma Per Brodal 2008

  20. Mammary gland from a child Ductus lactiferus Per Brodal 2008

  21. Restingmammary gland (adult) Interlobular connective tissue Terminal duct Lobuli Per Brodal 2008

  22. Lactating gland Alveoli Duct Per Brodal 2008

  23. Lactating Gland: Alveoli in Different Phases Producing Storing Per Brodal 2008

  24. Mammary Secretory Cell Lipids Compositionofmilk: Water 88 % Carbohydrates (lactose) 7 % Fat 4 % Proteins 1 % Proteins Colostrum: the first milk; rich in protein, IgA. Production starts last monthofpregancy Bloom and Fawcett Per Brodal 2008

  25. Myoepithelial Cells Around Alveoli Myoepithelial cells Secretory cells Per Brodal 2008

  26. Papilla mammaria Papilla Lactiferous duct (sinus) Areola Per Brodal 2008

  27. Papilla mammaria (mammae) Sebaceous glands Ductus lactiferus Per Brodal 2008

  28. Papilla mammae Ductus lactiferus Bundles of smooth muscle Per Brodal 2008

  29. MilkEjectionReflex • Sensory stimuli from the nipple • Reaches the hypothalamus • Release of oxytocin from the posterior pituitary • Contraction of smooth muscle cells • Psychic influences Per Brodal 2008

  30. Lymphatic Drainage Main outflow: to axillary (75 %) and parasternallymph nodes Benninghoff Per Brodal 2008

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