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Histology Intro

Histology Intro. Oh, Say, can you see?. Organs are made of lots of tissues!. Muscle: Cardiac. Muscle: Smooth. Muscle: Skeletal. Epithelial: Skin. Finding Epithelium. By definition, this tissue exists at the outside edge… Look for it! The “Free” surface = apical

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Histology Intro

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  1. Histology Intro Oh, Say, can you see?

  2. Organs are made of lots of tissues!

  3. Muscle: Cardiac

  4. Muscle: Smooth

  5. Muscle: Skeletal

  6. Epithelial: Skin

  7. Finding Epithelium • By definition, this tissue exists at the outside edge… • Look for it! • The “Free” surface = apical • Free faces outside or lumen of a tube • The “attached” surface = basal

  8. Determine the number of layers Simple: Stratified:

  9. … and shape Squamous Cuboidal Columnar

  10. …or something else… Pseudostratified… Transitional…

  11. Comparing epithelium Stratified squamous Simple columnar

  12. More epithelium… Simple cuboidal

  13. Neuron histology

  14. Nerve histology

  15. Connective Tissue Types Loose (areolar)

  16. Dense Connective Tissue Dense Irregular Joint capsules, skin, hollow organs Dense Regular • Tendons, ligaments

  17. Connective Tissue Blood Adipose (fat)

  18. Connective tissue Cartilage

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