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Tissues > Epithelial tissues > Flashcards

Epithelial tissues Flashcards

1
Q

What are the 2 types of epithelial tissue?

A

Glandular and surface

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2
Q

What are epithelial tissues supported by?

A

The basal membrane

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3
Q

What is not attached to the epithelial tissue and sits ‘free’?

A

Apical surface

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4
Q

What are 4 functions of epithelial tissue?

A

Protection
Diffusion
Absorption
Secretion

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5
Q

What type of epithelium has one only layer of cells?

A

Simple

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6
Q

What type of epithelium has 2 or more layers of cells?

A

Stratified

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7
Q

What give pseudostratified epithelium the appearance of stratified epithelium?

A

Cell nuclei are positioned at different heights - they don’t all reach the apical surface

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8
Q

What are the 4 epithelial cell shapes?

A

Squamous
Cuboidal
Columnar
Transitional

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9
Q

What is the function of epithelial tissue?

A

Provides structural and functional barriers between biological compartments

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10
Q

What are 3 specialisations of epithelial tissue? Give their functions.

A

Microvilli - increase surface area for absorption in small intestine

Cilia - beat rhythmically to move mucus and dirt in lungs

Keratin - provides strength and physical protection

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11
Q

What do simple squamous epithelium line?

A

Surfaces involved in diffusion

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12
Q

What do simple cuboidal epithelium line?

A

Ducts and tubules involved in secretion

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13
Q

What do simple columnar epithelium line?

A

Surfaces involved in absorption

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14
Q

What epithelium facilitate the moment of an ovum in the female reproductive tract?

A

Ciliated simple columnar

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15
Q

What is found at the basal layer of stratified epithelium?

A

Continuously dividing stem cells

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16
Q

What are shed at the apical surface of stratified epithelium?

A

Anucleate squamous (mature stem cells that have migrated from the basal layer)

17
Q

Give 2 examples of where keratinised stratified squamous epithelium can be found.

A

Epidermis and gingival tissues

18
Q

What function are stratified cuboidal epithelial cells involved in?

A

Secretion

19
Q

What functions are stratified columnar epithelial cells involved in?

A

Protection and secretion

20
Q

Where are stratified transitional epithelium found and what do they allow?

A

In the bladder.

They allow stretching and expansion

21
Q

What type of epithelium can be non-keratinised or keratinised?

A

Stratified squamous

Tissues (8 decks)

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