reverse 1 Flashcards
Single squamous epithelium structure
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
endothelium
Simple squamous epithelium most commonly lines the cardiovascular and lymphatic system where it is known as the ________
Mesothelium
Simple squamous forms the epithelial layer of serous membranes where it is called as the __________
Simple squamous epithelium location
Also found in air sacs of lungs, glomerular capsule of kidney, and inner surface of tympanic membrane
Simple squamous epithelium function
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 cuboidal epithelium structure
Single layer of cube-shaped cells; some cells have microvilli or cilia
Simple Cuboidal Epithelium function
Secretion and adsorption cells of kidney tubules
Simple Cuboidal Epithelium location
Secretion by cells of glands and choroid plexus
Simple Cuboidal Epithelium function
Movement of particles of embedded in mucus our of the terminal bronchioles by ciliated cells
Simple Cuboidal Epithelium location
Kidney tubules, glands and their ducts, choroid plexuses of the brain, lining of terminal bronchioles of lungs, and surfaces of ovaries
Simple columnar epithelium structure
Single layer of tall and narrow cells; some cells have cilia
Simple columnar epithelium function
Movement of particles out of the bronchioles of the lungs by ciliated cells
Simple columnar epithelium function
Partially responsible for the movement of oocytes through the uterine tubes by ciliated cells
Simple columnar epithelium function
secretion by cells of the glands, the stomach, and the intestine
Simple columnar epithelium function
Adsorption by cells of the intestine
Simple columnar epithelium location
Glands and some ducts, bronchioles of lungs, auditory tubes, uterus, uterine tubes, stomach, intestines, gallbladder, bile ducts, and ventricles of the brain
Pseudostratified epithelium structure
Single layer of cells, some cells are tall and thin and reach the free surface, and others do not
Pseudostratified epithelium structure
The nuclei oof these cells are at different levels and appear stratified
Pseudostratified epithelium function
the cells are almost always ciliated and are associated with goblet cells that secrete mucus onto the free surface
Pseudostratified epithelium function
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 location
Lining of nasal cavity, nasal sinuses, auditory tubes, pharynx, trachea, and bronchi of lungs
Stratified squamous epithelium structure
Several layers of cells are cuboidal in the basal layer and progressively flattened towards the surface.
Stratified squamous epithelium structure
Can be nonkeratinized (moist) or keratinized
nucleus and cytoplasm
In nonkeratinized stratified squamous epithelium, the nonkeratinized surface cells retains what?
keratin
In keratinized stratified epithelium, the cytoplasm of cells at the surface is replaced by a protein called ________
outer layer of skin
Stratified squamous epithelium: keratinized
Mouth
throat
Larynx
Esophagus
Urethra
Vagina
Anus
Corneas
Stratified squamous epithelium: nonkeratinized
Stratified cuboidal epithelium structure
Consists of more than one layer of cuboidal epithelial cells
Stratified cuboidal epithelium description
This epithelial type is
relatively rare and is found
in sweat gland ducts,
ovarian follicular cells, and
the salivary glands.
Stratified cuboidal epithelium function
It functions in absorption,
secretion, and protection.
Stratified columnar epithelium structure
consists of more than
one layer of epithelial
cells, but only the surface
cells are columnar
Transitional epithelium structure
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 function
Accommodates fluctuations in the volume of fluid in an organ or a tube; protects against the caustic effects of urine
Transitional epithelium location
Lining of urinary bladder, ureters, and superior urethra
