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Animal tissue 4 - Coggle Diagram
Animal tissue 4
Transition epithelium(Urothelium)
4-6 layers of cell
strecthable and water proof
layers
Innermost layer is Cube
Middle layer (2-4) is polyhedral/pearl
outermost layer is oval (1-2)
urinary bladder, ureter, pelvis, proximal urethra
BM is invisible when streched
Compound epithelium
protection against mechanical and chemical stress
Multi-layered
Skin, buccal cavity, pharynx, lining of salivary and pancreatic duct
Stratified columnar ciliated
larynx, bucc of frog
non ciliated: epiglotis, distal part of male urethra
pillar shaped cells outermost
Keratinized squamous
Non nucleated and dead
Skin, hair, hooves, horn, scale, feathers.
Non keratinized stratified squamous
Nucleated and living cells
Buccal cavity, esophagus, pharynx, vagina, cornea, inner ling of cheek, anal canal, lips , hard palate.
Stratified squamous epithelium
Layers
germinativum: Cuboidal
middle layer is polygonal
stratum corneum : flat
Cuboidal stratified: outermost layer cube
secretory duct of sweat gland, mammary gland, salivary gland, sebaceous gland , pancreatic duct.