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Human Anatomy > Epithelial Tissue > Flashcards

Epithelial Tissue Flashcards

1
Q

Characteristics of Tight Junctions

A
  • Prevents substances from moving between adjacent cells

- Form a “seal”

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2
Q

Characteristics of Desmosomes

A
  • Bind adjacent cells together
  • “Zip ties”
  • Distribute force from cell to cell
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3
Q

Characteristics of Gap Junctions

A

Allow ions and small molecules to move from cell to cell through small channels

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4
Q

What is the Basal Lamina? What are its functions?

A
  1. Noncellular sheet made of proteins

2. Functions: Selective filter

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5
Q

Basement Membrane =

A

basal lamina + reticular fibers

Sits under the epithelial tissue

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6
Q

Functions of the Cilia

A

Moves fluid/substances in one direction

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7
Q

How many layers does epithelial tissue have?

A 
Simple = 1 Layer 
Stratified = 2 or more layers
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8
Q

Characteristics & Functions of Simple Squamous Epithelium

A

Single layer of flattened cells

Diffusion, filtration, secretion

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9
Q

Characteristics & Functions of Simple Cuboidal Epithelium

A

Single layer of cube shaped cells

Absorption & Secretion

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10
Q

Characteristics & Functions of Simple Columnar Epithelium

A

Single layer of tall cells

Absorption, Movement, Secretion

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11
Q

Characteristics & Functions of Pseudo-stratified Columnar Epithelium

A

Single layer of cells of varying heights, nuclei are at different heights
Secretion and Movement

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12
Q

Characteristics & Functions of Stratified Squamous Epithelium

A

Multiple cells layers; apical layer flat

Protection

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13
Q

Characteristics & Functions of Stratified Cuboidal Epithelium

A

Two layers of cube shaped cells

Protection & Secretion

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14
Q

Characteristics & Functions of Stratified Columnar Epithelium

A

Several cell layers; apical layer tall

Protection & Secretion

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15
Q

Characteristics & Functions of Transitional Epithelium

A

Multiple layers that change shape when stretched

Unique to urinary system

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16
Q

Characteristics & Functions of Endocrine Glands

A

Lack ducts

Produce hormones which pass into surrounding tissues/blood vessels

17
Q

Characteristics & Functions of Exocrine Glands

A

Secrete via ducts into body cavities or onto a body surface

Human Anatomy (16 decks)

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