what's the difference between stratified squamous keratinised epithelium and stratified squamous epithelium?

Answer 1

Keratin is the protein our body uses to make hard, springy tissue, like fingernails, hair and most of our skin. Keratinized epithelium is always stratified squamous skin, meaning if you look at it under a microscope, the skin cells look squashed flat, and those flat cells are arranged in layers. This type of skin makes up all of our "dry" skin, basically everything that faces outside except our lips, the skin around the anus, and the skin of the labia minora in women.

The "skin" in those areas, as well as the skin in the mouth, throat, nose, and vagina are made of skin cells that look the same, but those skin cells do NOT contain keratin, which is why those tissues are softer than "dry" skin. This would be un-keratinized stratified squamous epithelium.

If you go a little deeper, the "skin" in the lower esophagus through the stomach, intestines and bowels are made of cells that don't look flat under the microscope, so these areas are called columnar epithelium (since the cells look like little columns).

Hope that helps.

Answer 2

Stratified Squamous Keratinized Epithelium

Answer 3

keratinized surfaces are kept hydrated and protected by keratin.keratinized epithelium is dead on the surface (like the skin,scalp,digestive system), and is in densely packed layers it also will slough off (flake), stratified squamous epithelium is characterised by its most superficial layer consisting of flat, scalelike cells called squamous cells, alive and unhardened and doesn't flake. Non-keratinized surfaces must be kept moist by bodily secretions to prevent them drying out and dying.

Answer 4

the first one is skin
the second is on the lips, mouth(some parts),etc
if there is persistent irritation sse can change in sske
of course, keratin is criteria for classification

Answer 5

keratinized epithelium has hardened- like fingernails.