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34 Cards in this Set
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- Back
- 3rd side (hint)
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Matrix 2종 |
-Formed (fibrous) : collagen, elastic, reticular -Amorphous(no shape): proteogycan (슈가) |
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Epithelial tissue |
Skin. Primary lining/covering tubes+ body cavities + glandular tissue (Closrly grouped , polyhedral cells) |
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Epithelial tissue 특징 |
Desmosome ( cellular jux) Little/No intercellular mat.(Matrix) & fluid Avascular (no blood, nerve) High mitosis Seperate by basement membrane |
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Epithelial tissue morphology |
Squamous, cuboidal, columnar, transitional Layer#에따라 -simple - 혈관, ovary, cervix( delicate area) =stratified ~psuedostratified 가짜레이어~ oral mucosa, trachea, sinus Stratified Squamous Epithelium - skin/oral mucosa* Superficial layer(dead skin) Surface layer(keratinized) Deeper layer (Basal cells=Reproduction) |
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What kind of tissue fluid in epithelial tissue? |
Tissue fluid (comes from b.plasma- diffuse thru capillaries 삼투압) Fluid carry nutrients & waste-> return to capillaries(via lymph) -> cells Ground substance(intercellular)- chemical substance Allow passage of metabolites btw blood & tissue |
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Intercellular substance (ground sub) |
Fills space btw cells in tissue Barrier around each cell Way of exchange of gas &metabolic sub Produce by cells 무색, 무모양, 투명 |
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Very little intercellular substance in |
Epithelial tissue |
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Melanin |
Inclusion |
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Keratin |
Intermediate protein filament Found in calloused(hard) epithelial tissue |
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입안 stratified squamous epithel.tissu |
Keratinized tissue: opaque, tough fibrous, waterproof, protein keratin (Protection layer& bacteria, resistant to friction) No Nucleus ex) hard palate Non-Keratinized tissue; easily injured, NUCLEUS |
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Basement membrane |
Evey type of epithel.tiss rest on basement membrane!!! -thin, Acellular, Non-living(no cell) |
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Always located between epithelial tissue & connective tissue? |
Basement membrane |
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Basement membrane 기능 |
Support, filtration barrier |
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What type of cellular connection/junction does epithelial tissue have to the basement membrane? |
Hemi |
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Basal Lamina |
Secreted by epithelial tissue |
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Reticular Lamina |
Secreted by connective tissue |
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Epithel티슈는 Rete Pegs 만드는 능력도잇지요 |
Rete pegs= extensions of epithelium into connective issue(*come from epithelial and dig down into connective tissue*) 왜중요? Add mechanical strength Provide more surface area B.vessel come in closer contact to epithelial layer to nourish |
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Rete peg cause stippling/dumpling in attached gingival |
Irregular binding of epithelium to bone by callagen fibers Epithelium is pulled tight to bone |
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Deeper germinal cell.. basal layer |
Mitosis. . Epithelium highly Regenerate , rapid cell turnover . |
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Epithelial cell undergo cellular differentiation |
Deeper germinal layer -> tissue surface (shed/lost) |
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Epithelial cell join by |
Intercellular junctions (desmosome) Except most superficial area |
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Epithelial cell tightly joined |
Non cellular surface (Hemi) Basement membrane Jux epithelium (sulcular)이빨표면 |
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Epithel.tissu 2 메이저 그룹 |
1. Surface epithel.tissu(covering & lining) - simple, stratified, peuso (gland) -Endocine gland- no duct 2. Glandular epithel.tissu(gland)-Endocine gland- no duct -Exocrine gland- duct-salivary gland*Mixed endo/exi - pancreas -Exocrine gland- duct-salivary gland* Mixed endo/exi - pancreas |
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Basement membrane = nonliving |
Basal lamina( lamina=layer) + Reticular lamina + Connective tissue |
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Connective tissue |
Cells + Marix Most abundant & widespread tissue 몇개없어여 - fewer cells spaced further apart - matrix 엄청많아여 - mitosis (epi는 basal layer만이지만) - vascular (except cartilage) - own blood supply - nerve supply (except cartilage) |
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What cell in connective tissue? |
Fixed & Wandering (move in &out) Miatrix: fiber & ground sub 1.Fibroblast (principle cell*) Large, flat, elongated Fixed (don't leave tissue to enter b.) *produce fibers* = matrix maker 2. Macrophage(histocyte) 3. Plasma cell (lymphocyte에서)- AB antibodies immune system 4. Mast cell (혈관근처)- 히스타민,해파린 5. *Mesenchymal cell (can change into necessary cell- fibroblast , fixed) |
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Matrix |
Provide medium for transport (영양분/쓰레기), support hold cell together Amorphous ground sub젤리loosygoosy all over (soft, viscous) - polysaccharide+protein Fluid made by fibroblasts(soft, viscous) - polysaccharide+protein *Hard, calcified- proteogycan, hydroxyapetite(뼈에잇엉) *Hard, calcified- proteogycan, hydroxyapetite(뼈에잇엉) Formed matrix- fibers ( collagen=thick strong, elastic=yellow thin, reticular=very thin) |
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2 classification of connective tissue |
1.Embryonic con.tiss=mescenchyme
2.Mature con.tiss(soft) -loose con.tiss( areolar, adipose, reticular) -dense(many more fibers): lagament -cartilage(firm) - hyaline, fibrous, elastic -bone(ridge) -blood&lymph |
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Classification type I 1st form conn.tissu - all otgrt CTarise from |
Mescenchymal tissue-Embryonic Ct
Undifferentiated 커서뭐할까 Ex) fibroblast, chondroblast(카틀리지), osteoblasts [forming cell] Irregular shaped cells Fibroblast-> Reticular fibers 얇지만강함) |
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Classification type II Mature ct. (based on texture) |
Soft - ct proper- 입안이(loose+dense) deeper layer of skin, oral mucosa Firm - cartilage Rigid -bone Fluid - blood, lymph |
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II Mature ct- Loose ct (soft) |
Fills space btw organs & tissues 1.Areolar - few cells, amorphous packaging 2.Adipose - areolar깊숙이에잇음. Derive from fibroblasts. 3.Reticular - liver, spleen, lymph nodes. Very thin fibers |
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II. Mature ct , Dense(fibrous) ct (soft) |
Under skin Tendon & Ligament *densely pack ct Forms capsules around organs Found throughout the body Ex. PDL, TMJ |
어떤cell잇나 Fibroblast Where can you find dense ct? Deepest layer of demis/lamina propria |
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Dense irregular / regular ct |
Irregular - areolar비슷 (loose) , more dense bc collagenous fibers [periosteum, tmj캡슐, heart valve, duramater] Regular- stronger.. 1,Elastic fiber(ligament.flexible) 2.Fibrous (*tendon, lagament, body) Heavy, tightly packed collagen fiber, resist tension |
Collagen=strongest, 큰줄 boat to doc= fibrous Elastic= spring Reticular = thin thread
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Connective tissue proper |
Loose & dense ct Skin deep to epidermis = dermis ct proper in Oral mucosa= lamina propria |
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