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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