Epithelial tissue Flashcards
Lines the internal and covers the external surfaces of the body.
Epithelial tissue
Protects the body from abrasion and injury.
Epithelial tissue
Absorption of material from a lumen.
Epithelial tissue
Transportation of material along a surface.
Epithelial tissue
All epithelial tissue lie at the?
basement membrane
All epithelial tissues are what?
Avascular
All epithelial cells undergo?
metaplasia
5 types of Junctional Complexes
- Occluding or Tight Junctions
- Adherent Junction
- Desmosome or macula adherens
- Hemidesmosomes
- Gap or communicating Junctions
Allows movement of materials along the surface.
Cilia
The cells of epithelial tissue have three (3) types of surfaces.
- basal
- apical
- lateral
2 major characteristics of epithelial tissue divide it into subclasses:
- the shape of the cells
- presence of the layers
3 Shape of Cells of Epithelial Tissue
- Squamous
- Cuboidal
- Columnar
2 layers of Epithelial Tissue
- Simple
- Stratified
Distends tissues of urinary tract stretching.
(specialized epithelial tissue)
Transitional Epithelium
Makes up the epidermis of skin keratin.
(specialized epithelial tissue)
Keratinized Stratified Squamous Epithelium
Found in regions subject to abrasion, for example oral mucosa and vaginal lining control small amount of keratin.
(specialized epithelial tissue)
Non - Keratinized Stratified Squamous Epithelium
Lines the inner surface of the trachea not all cell reached apical level single basil/amina.
(specialized epithelial tissue)
Pseudostratified Ciliated Columnar Epithelium
Lines the inner surface of blood vessels simple squamous.
(specialized epithelial tissue)
Endothelium
Present in the nervous system Central Nervous System; cuboidal or columnar.
(specialized epithelial tissue)
Ependymal Cells
8 types of Epithelium
- Simple Squamous
- Simple Cuboidal
- Simple Columnar
- Stratified Squamous
- Stratified Cuboidal
- Stratified Columnar
- Transitional
- Pseudostratified Columnar
Lining of Loop of Henle, Alveoli, Blood
vessels.
(types of epithelium)
Simple Squamous
Ducts of the gland, Lining of kidney
tubules.
(types of epithelium)
Simple Cuboidal
Uterine tube, Lining of stomach, gall bladder (non-ciliated), Fallopian tube (ciliated), small intestine (w/ microvilli).
(types of epithelium)
Simple Columnar