MYOEPITHELIAL CELLS• Epithelial in origin• Contractile apparatus• Between secretory cells and basement  membrane
STRATIFIED EPITHELIUM• SHAPE OF SURFACE CELLS• Stratified squamous  Non keratinized  Keratinized• Stratified columnar• Str...
STRATIFIED SQUAMOUS• Main protective epithelium• Number variable• Basal layer of cells• Polyhedral cells• Cells gradually ...
Stratified squamous non               keratinized• Thin flattened scale like surface cells with  flattened nuclei• Moist s...
St. Sq. KERATINIZED• Surface layer of cells  are flattened without  nuclei• Layer of protein  keratin• Epidermis of the skin
Stratified columnar• Two layer of columnar cells• Basal layer resting on a basement  membrane• Rare junction of st. sq. wi...
STRATIFIED CUBOIDAL•   Two to three layer•   Basal layer low columnar•   Surface layer cuboidal•   Barrier or passage•   A...
Tissue part 2
Tissue part 2
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Tissue part 2

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Histology Notes

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Tissue part 2

  1. 1. MYOEPITHELIAL CELLS• Epithelial in origin• Contractile apparatus• Between secretory cells and basement membrane
  2. 2. STRATIFIED EPITHELIUM• SHAPE OF SURFACE CELLS• Stratified squamous Non keratinized Keratinized• Stratified columnar• Stratified cuboidal• Number of layers variable• Basal layer cuboidal to columnar resting on a basement membrane
  3. 3. STRATIFIED SQUAMOUS• Main protective epithelium• Number variable• Basal layer of cells• Polyhedral cells• Cells gradually flatten• Shape of nucleus corresponds to the shape of cells• No spaces visible between the cells under the L/ M• Two main varieties
  4. 4. Stratified squamous non keratinized• Thin flattened scale like surface cells with flattened nuclei• Moist surfaces of the body
  5. 5. St. Sq. KERATINIZED• Surface layer of cells are flattened without nuclei• Layer of protein keratin• Epidermis of the skin
  6. 6. Stratified columnar• Two layer of columnar cells• Basal layer resting on a basement membrane• Rare junction of st. sq. with pseudo stratified ( oropharynx with nasopharynx)• Larger ducts of exocrine gland• Barrier or passage
  7. 7. STRATIFIED CUBOIDAL• Two to three layer• Basal layer low columnar• Surface layer cuboidal• Barrier or passage• Antrum of the ovarian follicle duct of sweat gland

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