Epithelial Tissue - Classification By Shape Flashcards

1
Q

What are the three possible shapes of epithelial cells?

A

Squamous

Cuboidal

Columnar

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2
Q

Describe the appearance of squamous epithelial cells

A

Thin and flat

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3
Q

Describe the appearance of cuboidal epithelial cells

A

Square shaped

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4
Q

Describe the appearance of columnar epithelial cells

A

Tall, slender rectangles

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5
Q

What are the two possible ways to classify epithelial cells based on their layers?

A

Simple epithelium

Stratified epithelium

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6
Q

Describe the appearance of simple epithelia.

A

They consists of a single layer of cells

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7
Q

Describe the appearance of stratified epithelia.

A

They consist of two or more layers of cells

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8
Q

What is the third way to classify epithelia other than by their shape and number of layers?

A

Based on surface specialisations

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9
Q

Give two examples of simple squamous epithelium.

A

Capillary

Alveoli

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10
Q

Give an example of cuboidal epithelium

A

Sweat duct

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11
Q

Give an example of columnar epithelium

A

Intestine

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12
Q

Which cell determines the cell classification in epithelia?

A

The cell at the surface

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13
Q

How do you classify stratified epithelia?

A

By looking at the outermost layer, e.g. skin is stratified squamous due to the thin cells on the surface

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14
Q

What two types of epithelia are exceptions to the general rules of classification?

A

Pseudostratified

Transitional

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15
Q

Describe what is meant by pseudostratified epithelia.

A

This is where there is only one layer of epithelial cells but it appears to be more than one

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16
Q

Give an example of pseudostratified epithelia

A

Airways

17
Q

Describe what is meant by transitional epithelia

A

This is where the outer layer of cells changes shape depending on the fullness of the tube/organ

18
Q

Give an example of a place in the body where there are transitional epithelia cells.

A

Bladder