Term
| what do you call a collection of specialized cells? |
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Definition
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Term
| what are characteristics of epithelial tissue? |
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Definition
| covers and lines the external and internal body surfaces providing protection. contains vessels and cavities. |
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Term
| what tissue makes up the oral cavity? what does it look like? |
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Definition
stratified squamous epithelium
it is cuboidal at base and flat on top |
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Term
| what are some functions of epithelial tissue? |
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Definition
absorption
secretion (sweat/saliva)
sensory gathering (pressure/pain)
specialized functions |
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Term
| what is epithelial tissue derived from: |
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Definition
primal tissues
-ectoderm
-endoderm
-mesoderm |
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Term
| what type of tissue shows up as falsly appearing layers |
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Definition
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Term
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Definition
at basement membrane
they move up/out to surface as they mature and die |
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Term
| how are epithelial tissues connected? |
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Definition
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Term
| where do nutrients come from? |
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Definition
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Term
| what separates epithelium and connective tissue? |
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Definition
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Term
| does the basement membrane have blood supply |
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Definition
| no it is avascular/ no blood supply |
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Term
| if cells are connected to the basement membrane, are they hemidesomosomes or desmosomes? |
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Definition
| hemidesmosomes only one side has tonofibrils |
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Term
| what are the two main categories of epithelial tissues? |
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Definition
stratified (layered)
unstratified (single/simple) |
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Term
| where can you find transitional epithelial tissue? |
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Definition
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Term
| where can you find stratified squamous epithelial tissue? |
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Definition
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Term
| where can you find pseudostratified epithelial tissues? |
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Definition
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Term
| with unstratified epithelium do all cells touch basement membrane |
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Definition
| yes all unstratified epithelium touch basement membrane |
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Term
| if epithelium is stratified it must have at least____ layers? |
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Definition
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Term
| what provides the extension of epithelium into connective tissue? |
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Definition
rete pegs/rete ridges
(in sulcular epithelium rete pegs only show on outside) |
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Term
| what is like scar tissue? |
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Definition
| rete pegs are like scar tissue |
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Term
| what are some examples of unstratified epithelium? |
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Definition
blood vessels, heart
lungs, kidney |
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Term
| where would you find keratinized stratified squamous epithelium? |
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Definition
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Term
| where would you find unkeratinized stratified squamous epithelium? |
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Definition
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Term
| what are the types of basil lamina? |
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Definition
lamina lucida
lamina densa
hemidesomosome layer |
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Term
| what lamina holds things together/gives padding and causes stippling and is a loose connective tissue? |
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Definition
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Term
| where is new connective tissue made and new epithelium made? |
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Definition
| by fibroblasts and are located in the connective tissue!!! |
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Term
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Definition
| help repair, make new tissue |
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Term
| from the basement membrane what is the order of connective tissue? |
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Definition
basement membrane
loose connective tissue
dense connective tissue |
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Term
| what happens during injury/ clot repair |
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Definition
injury
clot
inflammation and wbc's
fibroblasts migrate to produce immature connective tissue
imature connective tissue is granulation tissue!!! |
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Term
describe granulation tissue
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Definition
newest tissue
moist, oozy
few fibers but lots of blood vessels
red and bleeds easily
it is replaced with scar tissue |
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Term
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Definition
more fibers
fewer blood vessels |
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Term
| what are some types of specialized tissue |
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Definition
| adipose and elastic tissue |
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