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Histology- Epithelial Tissue and Glands (Tissue (Epithelial tissue…
Histology- Epithelial Tissue and Glands
Tissue
Epithelial tissue (epithelium)
Characteristics
Cellularity
Polarity
basal
Basement membrane
Basal lamina/ lamina densa 基底層
Lamina lucida透明層
Lamina reticularis 網狀層
Cell-to-ECM adhesion
#
Basal infolding
Cell Adhesion Molecules (CAMs)
type
cell-to-cell
lateral
Occluding junctions
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Anchoring junctions
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Communicating junctions
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Lateral infoldings or plicae
Fascia Adherens
cell-to-ECM
Hemidesmosomes
intermediate filaments
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Focal adhesions
actin filaments
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molecules
homo
Cadherins
Immunoglobulin superfamily (IgSF)
hetero
Integrins 整合素-->ECM
Selectins 選滯蛋白 WBC
Structural components
Integral protein
microfilament
Plaque
Apical
functional object
modification
Microvilli
Stereocilia
Cilia
clinical:PCD/immotile cilia syndrome
e.g.Kartagener’s syndrome
Primary cilia
Nodal cilia
Motile cilia
Avascular but innervated
Special Nomenclature
Endothelium
Mesothelium
Endocardium
Epitheloid 類上皮
Classification
presence(apical)
Cornified 角質化(keratinizied)/noncornified
Ciliated 纖毛/nonciliated
Stereocilia 靜纖毛(long microvilli)
Microvilli 微絨毛--Striated border or brush border
number
Simple 單層, stratified 複層, pseudostratified 擬複層
clinical:Epithelial metaplasia
shape(outermost)
Squamous 鱗狀, cuboid立方狀, columnar 柱狀,
transitional 移形上皮
Glands
-crine
內
endocrine
旁
paracrine
autocrine
外exocrine
Apocrine
Merocrine
Apocrine
epithelial
intraepithelial 上皮內腺
cell
Unicellular
goblet cell
Multicellular
parts
Epithelium-walled duct
Secretory unit
structure
Simple
Compound
secretory unit
Tubular 管狀
Alveolar or acinar泡狀
acini 腺泡
Tubuloalveolar or tubuloacinar 管泡狀
secretion
mucous 黏液
mixed type
Serous 漿液
Connective tissue
Muscle tissue
Nerve tissue
epithelial cells
connective tissue