Stratified epithelia (of columnar, cuboidal or squamous type) can have the following specializations:
KeratinizedIn this case, the most apical layers (exterior) of cells are dead and lose their nucleus and cytoplasm, instead contain a tough, resistant protein called keratin. This specialization makes the epithelium waterproof, so is found in the mammalian skin. The lining of the esophagus is an example of a non-keratinized or "moist" stratified epithelium.[citatioTransitional or
non-keratinizedTransitional epithelium, like pseudostratified epithelium, is almost a class of its own; it is found in tissues that stretch and it can appear to be stratified cuboidal when the tissue is not stretched or stratified squamous when the organ is distended and the tissue stretches. It is sometimes called the urothelium since it is almost exclusively found in the bladder, ureters and urethra.[citation needed]
taken from wikipedia (Related Link)
Keratinized epithelial tissues are found as an outer layer to your skin. The top layer of cells is filled with a substance called keratin. You shed these dead cells all the time and they are constantly replaced.
Connective is a broad name for a type of tissues including tendons and ligaments.
The function of the keratinized stratified squamous epithelium is to protect from abrasion and keep hydrated. The palm of the hand and sole of the feet are examples.
non-keratinized stratified squamous
Examples of stratified squamous epithelium include the epidermis of the skin, lining of the oral cavity, esophagus, vagina, and anus. These tissues are composed of multiple layers of flat, scale-like cells that provide protection against physical trauma, abrasion, and pathogens.
Simple stratified epithelium lines the anus.
B. stratified squamous
Yes, the inside of the mouth is lined with non-keratinized stratified squamous epithelial cells. As in most mucous membranes, that is the main tissue type. Parts of the gums, hard palate, and tongue are slightly keratinized, but not nearly as much as the skin outside the mouth is keratinized.
Stratified Squamous
Stratified = layered; Epithelium = exterior, as compared to mesothelium or endothelium; Squamous = are flattened cells, obvious to be layered: need help/input/please,
non-keratinized stratified squamous
According to my histology textbook, non-keratinized stratified squamous epithelium lines the length of the Esophagus. not too sure why though!! when cells are not keratinised the surface cells can be used alternatively to protect the underlying cells. this only occurs in areas where there will be very little friction therefore damage caused to the cells. WHY its non-kerantinized, because its WET. keratinized stratified squamous epithelium is dry (nails, hair, skin).
The stratified squamos lines the inside of the mouth.
The epidermis is highly keratinized, mostly dead, stratified squamous epithelium.
stratified squamous epithelial and simple cuboidal epethilium.
Stratified squamous epithelium has many layers of flattened cells and function in protection. There are two types: non-keratinized: found in the lining of the mouth, the throat, the vagina, and the anus. The second type is keratinized and is found as the epidermis of the skin.
The epidermis is made up of stratified squamous epithelium.
Keratinized covers the dry areas of the skin whilst non keratized covers moist areas such as the larynx, vagina, and upper esophagus.
The oropharynx and the laryngopharynx are lined by non-keratinizing stratified squamous epithelium.
Examples of stratified squamous epithelium include the epidermis of the skin, lining of the oral cavity, esophagus, vagina, and anus. These tissues are composed of multiple layers of flat, scale-like cells that provide protection against physical trauma, abrasion, and pathogens.