Epithelial tissue Flashcards
Epithelial
Covering
The four main types of tissue in the body are?
Epithelial
Connective
Muscle
Nervous
Connective
Support
Muscle
Movement
Nervous
Control
Unique epithelial tissue characteristics
Cellularity
Polarity
Epithelial tissue:
Cellularity
Cells tightly packed with little intercellular matrix
Epithelial tissue:
Polarity
Cells have apical and basal surface
Epithelial tissue:
Polarity:
Apical surface
Free surface of cell, not in contact with other cells
Epithelial tissue:
Polarity:
Basal surface
Cells are attached to underlying connective tissue by a basement membrane
Simple epithelium
One cell layer thick
All cells in direct contact with basement membrane
Stratified epithelium
Two or more layers of epithelial cells
Pseudostratified epithelium
All cells attach to basement membrane but appear layered
Squamous cells
Flat, wide, irregular shape
Cuboidal cells
As tall as they are wide