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Flashcards in Extra Epithelium Questions Deck (20)
1

Epithelium is made up of....

ALL germ layers

2

Membrane Epithelium

Arranged in sheets to cover the surface of the body

Cover and line body surfaces = inside AND outside of body

3

KNOW CLASSIFICATION OF EPITHELIUM CHART

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4

What is the function of keratinization?

Increased protection

Only on skin = stratified squamus epithelium

5

KNOW KERATINIZED EPITHELIUM PICTURES

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6

Pseudostratified Epithelium

Simple Columnar

Variable cell heights

All attach to basement membrane

Not all reach to surface of the epithelium

Typically with apical modifications = cilia or stereocilia

7

KNOW CLASSES OF EPITHELIUM SHEETS SLIDE

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8

Junctional Complex

Adhesion of epithelial cells to one another

Previously known as Terminal Bars

9

Components of Junctional Complex

Zonula Occludens (tight junctions; most apical)

Zonula Adherans

Macula Adherans (desmosomes; most basal)

10

Adhesion of Epithelial Cells to One another

Junctional Complex (Terminal bars)

Desmosomes (intercellular bridges)

11

Desmosomes

(manacula adherens)

Previously know as Intercellular Bridges

12

What are the 2 part of the Basal Lamina

Lamina Lucida
Lamina Densa

13

Glands are also known as...

Primitive Connective Tissue

14

Components of Glands

Parenchyma = Functional component of glands
1) Secretory epithelial cells
2) Epithelial cells of ducts (if ducts present)

Stroma = Structural and Supportive components
1) Connecting tissue matrix and cells
2) Blood vessels
3) Nerves

15

LOOK AT EXOCRINE VS ENDOCRINE PICTURES ON SLIDE

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16

Example of multicellular glands

Endocrine - Parathyroid Gland

Exocrine - Salivary Gland

17

Sebaceous secretion =

Sebum (lipids)

18

KNOW SHAPES OF SECRETORY CELL GROUPS OF EXOCRINE GLANDS

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19

KNOW TYPES OF EXOCRINE GLANDS

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20

Myoepithelial Cells

Basket Cells

Assists endocrine glands

Share basal lamina with secretory cells

Contractile cell with epithelial origin that assist with movement of secretory products out of endocrine glands