Major types of Epithelial Tissues Flashcards
Is a single layer of flat cells that resembles a tiled floor when viewed from an apical surface, centrally located nucleus that is flattened and oval or spheric in shape
Single squamous epithelium
Simple squamous epithelium most commonly lines the cardiovascular and lymphatic system where it is known as the ________
endothelium
Simple squamous forms the epithelial layer of serous membranes where it is called as the __________
Mesothelium
Also found in air sacs of lungs, glomerular capsule of kidney, and inner surface of tympanic membrane
Simple squamous epithelium
Present at sites of filtration or diffusion and at sites of secretion in serous membranes. Not found in body areas subject to mechanical stress
Simple squamous epithelium
Single layer of cube-shaped cells; some cells have microvilli or cilia
Simple cuboidal epithelium
Secretion and adsorption cells of kidney tubules
Simple Cuboidal Epithelium
Secretion by cells of glands and choroid plexus
Simple Cuboidal Epithelium
Movement of particles of embedded in mucus our of the terminal bronchioles by ciliated cells
Simple Cuboidal Epithelium
Kidney tubules, glands and their ducts, choroid plexuses of the brain, lining of terminal bronchioles of lungs, and surfaces of ovaries
Simple Cuboidal Epithelium
Single layer of tall and narrow cells; some cells have cilia
Simple columnar epithelium
Movement of particles out of the bronchioles of the lungs by ciliated cells
Simple columnar epithelium
Partially responsible for the movement of oocytes through the uterine tubes by ciliated cells
Simple columnar epithelium
secretion by cells of the glands, the stomach, and the intestine
Simple columnar epithelium
Adsorption by cells of the intestine
Simple columnar epithelium
Glands and some ducts, bronchioles of lungs, auditory tubes, uterus, uterine tubes, stomach, intestines, gallbladder, bile ducts, and ventricles of the brain
Simple columnar epithelium
Single layer of cells, some cells are tall and thin and reach the free surface, and others do not
Pseudostratified epithelium
The nuclei oof these cells are at different levels and appear stratified
Pseudostratified epithelium
the cells are almost always ciliated and are associated with goblet cells that secrete mucus onto the free surface
Pseudostratified epithelium
Synthesize and secrete mucus onto the free surface and move mucus that contains foreign particles over the surface of the free surface and from passages
Pseudostratified epithelium
Lining of nasal cavity, nasal sinuses, auditory tubes, pharynx, trachea, and bronchi of lungs
Pseudostratified epithelium
Several layers of cells are cuboidal in the basal layer and progressively flattened towards the surface.
Stratified squamous epithelium
Can be nonkeratinized (moist) or keratinized
Stratified squamous epithelium
In nonkeratinized stratified squamous epithelium, the nonkeratinized surface cells retains what?
nucleus and cytoplasm
In keratinized stratified epithelium, the cytoplasm of cells at the surface is replaced by a protein called ________
keratin
Protects against abrasion, forms a barrier against infections, and reduces loss of water from the body
Stratified squamous epithelium
Stratified squamous epithelium: keratinized
outer layer of skin
Stratified squamous epithelium: nonkeratinized
Mouth
throat
Larynx
Esophagus
Urethra
Vagina
Anus
Corneas
Consists of more than one layer of cuboidal epithelial cells
Stratified cuboidal epithelium
This epithelial type is
relatively rare and is found
in sweat gland ducts,
ovarian follicular cells, and
the salivary glands.
Stratified cuboidal epithelium
It functions in absorption,
secretion, and protection.
Stratified cuboidal epithelium
consists of more than
one layer of epithelial
cells, but only the surface
cells are columnar
Stratified columnar epithelium
Stratified cells that appear cuboidal when the organ or tube is not stretched and squamous when the organ of the tube is stretched by fluid
Transitional epithelium
Accommodates fluctuations in the volume of fluid in an organ or a tube; protects against the caustic effects of urine
Transitional epithelium
Lining of urinary bladder, ureters, and superior urethra
Transitional epithelium
