Page 14 - Chapter 3: Cells and Tissues

3. Histology
Histology is the study of tissues.

4. Epithelial Tissue

Epithelial tissue covers surfaces, lines cavities, and engages in
secretion, absorption, and protective functions.

A. Classification according to shape (Figure 6-2). It is classified
according to cell shape (squamous, cuboidal, and columnar) and
layers (simple and stratified)

a. Squamous
Cells are thin and flat like fish scales

b. Cuboidal
Cells are cubelike and look like dice

c. Columnar
Cells are tall and narrow and look like columns

B. Classification according to layers
a. Simple