Epithelial Cells

Epithelial Cells

1. Surface of Epithelia

   • Apical Surface
     • Cilia
     • Microvilli
     • Keratin
   • Basal surface
     • Hemidesmosomes
     • Integrins
     • Transport proteins
   • Lateral Surface
     • Gap junctions
     • Maculae
     • Zonulae

2. Characteristics of Epithelial Tissues

   • Cellularity
   • Polarity
   • Attachment
   • Avascularity
   • Regeneration

3. Functions of Epithelial Tissues

   • Protection
   • Secretion
   • Absorption
   • Transport
   • Sensing

4. Cell Types

   • Shapes
     • Squamous
     • Cuboidal
     • Columnar
   • Number of layers
     • Simple
     • Stratified
     • Pseudostratified