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Histo- Epithelium > Histo - Epithelium > Flashcards

Histo - Epithelium Flashcards

1
Q

What are the juctions in Lateral modification

A

Tight Junction
Zonula Adherence
Desmosomes
Gap Junction

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2
Q

Proteins in tight junctions

A

Claudin
Occludin
ZO proteins (1,2,3)

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3
Q

Proteins in Zonula Adherence

A

cadherins
Catenins

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4
Q

Proteins in desmosomes

A

desmoglein
Desmocollin

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5
Q

Proteins in Gap Junction

A

connexins

Forming connexon

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6
Q

Apical modification

A

Cilia
Microvilli
Stereocilia

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7
Q

BASAL MODIFICATION

A

Hemidesmosomes
Focal adhesion

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8
Q

Glands

A

Exocrine
Endocrine

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9
Q

Functions of glands

A

Transport
Absorption
Secretion

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10
Q

MODES OF SECRETION

A

Merocrine
Apocrine.
Holocrine

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11
Q

TYPE OF SECRETION

A

Mucous
Serous
Seromucous

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12
Q

Simple glands

A

Simple tubular
Branched tubular
Coiled tubular
Acinar
Branched acinar

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13
Q

Compound glands

A

Tubular
Acinar
Tubuloacinar

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14
Q

– epidermis and dermis only (sunburn)

A

1st Degree

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15
Q

– includes subcutaneous layer (fat, blood
vessels)

A

2nd Degree

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16
Q

– including bone and muscle layer •

A

3rd Degree

17
Q

Carcinoma -
skin malignancies that begin with the epithelial tissues

A

-Squamous cell carcinomas – stratum basale

-Basal cell carcinomas

-Melanomas

18
Q
  • Affect desmosomes
A

Pemphigus Vulgaris

19
Q
  • Abnormal cilial function
A

Kartagener’s Syndrome

20
Q

-Transformation of one type of epithelial tissue to another

-reversible

A

Metaplasia

21
Q
  • where products to be secreted are
    generally stored, Exocrine
A

Secretory granules

22
Q

Basal modification; focal adhesion proteins

A

Type IV collagen
Laminin
Nidogen and perlecan,

23
Q

– accumulation of cross-linked cytokeration
intermediate filaments that form squames consisting of the
protein keratin K

A

Keratinization

24
Q

Characteristics of epithelium

A

Cellularity
Polarity
Attachment
Avascularity
Regenerative

25
Q

Functions of epithelium

A

Protection
Permeability
Absorption
Secretion
Sensory

26
Q

1: band-like; encircle each cell completely
2. disk-like; attach adjacent cells only at a single spot

A

Zonulae
Maculae

27
Q

Allow passage of selected cations between
cells, acting as ion channels; determines the
permeability

A

Claudins

28
Q

– replace claudin, where three cells meet

A

Tricelullin

29
Q

ensure claudins are allign

A

ZO 2

30
Q
  • Structurally similar but discontinuous strips
    Lof tight
A

fascia occludens

31
Q

combination of zonula occludens, adherence and desmosomes
* appear as a band of branching strands in the membrane around each cell’s apical end

A

Terminal bars-

32
Q

Bacteria that causes food poisoning in tight junctions

A

Clostridium perfringens

33
Q

Causes gastric ulcers

A

Helicobacter pylori

Histo- Epithelium (1 decks)

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