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Cell Bio And Histology > Epithelial tissues > Flashcards

Epithelial tissues Flashcards

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Biology 101 flashcards
0
Q

Epithelial tissues are derived from?…

A

The three germ layers: Ectoderm, Mesoderm, and Endoderm

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1
Q

Cells exhibit polarity involving two domains, what are they?

A

Apical domain (contact with the lumen) and basolateral domain (in contact with basal lamina)

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2
Q

Basement membrane consists of what two compartments?

A

Basal lamina and reticular lamina

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3
Q

To be a type of red stain (not related to Aunt Flo) for carbohydrates,found in the basal lamina, is said to be?…

A

PAS +

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4
Q

The basal lamina is formed by? Composed of?

A

Epithelial tissue.

Type IV collagen, fibronectin, laminin, and entactin

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5
Q

The reticular lamina is formed by? Composed of?

A

Connective tissue.

Argyophilic fibers, reticular fibers, and glycoproteins

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6
Q

Argyrophilic reactions use this chemical to stain what kind of fibers found in the reticular lamina?

A

Silver nitrate (dark blue or black in color) stains reticular fibers

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7
Q

What are the three functions of the basement membrane?

A

Selective filtration barrier

Stabilizes the cell structure

Scaffold for embryogenesis and regeneration

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8
Q

Modifications of the apical domain consist of?

A

Cilia, stereocilia, and microvilli

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9
Q

Lightly keratinized epithelium can be found lining?

A

Esophagus and vagina

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10
Q

Highly keratinized epithelium can be found?

A

Covering the epidermis

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11
Q

How will mucus appear on an H&E stain?

A

Empty or colorless

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12
Q

I line endothelial tissue, the walls of alveoli, bowmans capsule, tympanic membrane, etc…I am?

A

Simple squamous epithelium

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13
Q

I line kidney tubules, glands, ducts, male urethra, etc…I am?

A

Simple cuboidal epithelium

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14
Q

I line the upper respiratory tract, uterus, uterine tubes, paranasal sinuses, etc…I am?

A

Ciliated simple columnar epithelium

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15
Q

I line the digestive tract starting at the cardiac sphincter of the stomach, the gall bladder,…I am?

A

Non Ciliated simple columnar epithelium

16
Q

Pseudostratified epithelium with stereocilia is found where?

A

Epididymis

17
Q

When describing the functions of epithelial tissues, the height of a cell reflects what?

A

The levels of secretory or absorptive activity

18
Q

In Non keratinized stratified squamous epithelium, where are the nuclei present?

A

The outermost cells

19
Q

Keratinized stratified squamous epithelium lack what in the outermost layer?

A

Nuclei

20
Q

A simple low or high cuboidal epithelium can be found in the thyroid what does the height signify?

A

Low- non active follicles

High- active follicles

Cell Bio And Histology (17 decks)

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