Histo - Epithelium

Question 1

What are the juctions in Lateral modification

Answer 1

Tight Junction
Zonula Adherence
Desmosomes
Gap Junction

Question 2

Proteins in tight junctions

Answer 2

Claudin
Occludin
ZO proteins (1,2,3)

Question 3

Proteins in Zonula Adherence

Answer 3

cadherins
Catenins

Question 4

Proteins in desmosomes

Answer 4

desmoglein
Desmocollin

Question 5

Proteins in Gap Junction

Answer 5

connexins

Forming connexon

Question 6

Apical modification

Answer 6

Cilia
Microvilli
Stereocilia

Question 7

BASAL MODIFICATION

Answer 7

Hemidesmosomes
Focal adhesion

Question 8

Glands

Answer 8

Exocrine
Endocrine

Question 9

Functions of glands

Answer 9

Transport
Absorption
Secretion

Question 10

MODES OF SECRETION

Answer 10

Merocrine
Apocrine.
Holocrine

Question 11

TYPE OF SECRETION

Answer 11

Mucous
Serous
Seromucous

Question 12

Simple glands

Answer 12

Simple tubular
Branched tubular
Coiled tubular
Acinar
Branched acinar

Question 13

Compound glands

Answer 13

Tubular
Acinar
Tubuloacinar

Question 14

– epidermis and dermis only (sunburn)

Answer 14

1st Degree

Question 15

– includes subcutaneous layer (fat, blood
vessels)

Answer 15

2nd Degree

Question 16

– including bone and muscle layer •

Answer 16

3rd Degree

Question 17

Carcinoma -
skin malignancies that begin with the epithelial tissues

Answer 17

-Squamous cell carcinomas – stratum basale

-Basal cell carcinomas

-Melanomas

Question 18

• Affect desmosomes

Answer 18

Pemphigus Vulgaris

Question 19

• Abnormal cilial function

Answer 19

Kartagener’s Syndrome

Question 20

-Transformation of one type of epithelial tissue to another

-reversible

Answer 20

Metaplasia

Question 21

• where products to be secreted are
  generally stored, Exocrine

Answer 21

Secretory granules

Question 22

Basal modification; focal adhesion proteins

Answer 22

Type IV collagen
Laminin
Nidogen and perlecan,

Question 23

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

Answer 23

Keratinization

Question 24

Characteristics of epithelium

Answer 24

Cellularity
Polarity
Attachment
Avascularity
Regenerative

Question 25

Functions of epithelium

Answer 25

Protection Permeability Absorption Secretion Sensory

Question 26

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

Answer 26

Zonulae Maculae

Question 27

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

Answer 27

Claudins

Question 28

– replace claudin, where three cells meet

Answer 28

Tricelullin

Question 29

ensure claudins are allign

Answer 29

ZO 2

Question 30

- Structurally similar but discontinuous strips Lof tight

Answer 30

fascia occludens

Question 31

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

Answer 31

Terminal bars-

Question 32

Bacteria that causes food poisoning in tight junctions

Answer 32

Clostridium perfringens

Question 33

Causes gastric ulcers

Answer 33

Helicobacter pylori