Anatomy Worksheet: Epithelial Tissues



Epithelial Tissues Name ____________________

Part I: Matching Vocabulary

Tissue Squamous Simple

Stratified Cuboidal

Glandular Transitional Pseudostratified

1. One single layer of cells ______________

2. Tissue specialized in secreting _____________

3. Cube shaped cells _____________

4. Many layers of cells_________________

5. A group of cells with the same specialized purpose_________________

6. A group of cells that appear to be in layers _______________

7. Flat cells that cover many body parts and glands _______________

8. Tissues whose cells change size and shape ____________

PART II: Membraneous Epithelial Tissue

Simple Squamous Simple Cuboidal Simple Columnar

Pseudostratified Columnar Stratified Squamous

Stratified Cuboidal Stratified Columnar Transitional

Basement Membrane

1. Long cells with nuclei near basement membrane ___________________

2. Specialized cells to react to tension/stress _________________

3. Single flat layer of cells ________________

4. Tissues that make up skin ______________

5. Tissues that line the respiratory system and trap dust and microorganisms _________________

6. Layers of cube shaped cells ____________________

7. Tissues with centrally located, spherical nuclei _____________________

8. The underside of epithelial tissue is always anchored to connective tissue by the __________________________________

9. Tissues that line the male urethra, vas deferens, and the pharynx

___________________________________________

PART III: Read and Highlight

Epithelia are tissues consisting of closely apposed cells without intervening intercellular substances. Epithelia are avascular, but all epithelia "grow" on an underlying layer of vascular connective tissue. The connective tissue and the epithelium are separated by a basement membrane. Epithelium covers all free surfaces of the body. Epithelium also lines the large internal body cavities, where it is termed mesothelium. Furthermore, the internal surfaces of blood and lymph vessels are lined by epithelium, here called endothelium.

Epithelia are classified on the basis of the number of cell layers and the shape of the cells in the surface layer.

* If there is only one layer of cells in the epithelium, it is designated simple.

* If there are two or more layers of cells, it is termed stratified.

* Cells in the surface layer are, as a rule, described according to their height as squamous (scale- or plate-like), cuboidal or columnar.

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