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Cell Bio I > Epithelium I > Flashcards

Epithelium I Flashcards

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1
Q

What are the epithelial cell domains?

A

1) Apical
2) Lateral
3) Basal (basolateral)

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2
Q

What is the epithelial sheet anchored to?

A

Basal lamina

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3
Q

What three characteristics are used to classify epithelium?

A

1) Number of cell layers
2) Cell shape in superficial layer
3) Presence of specialization of plasma membrane

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4
Q

What are the functions of simple squamous epithelium?

A

1) Blood-brain barrier
2) Filtration
3) Exchange

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5
Q

Where is simple cuboidal epithelium found?

A

1) Thyroid follicles
2) Renal tubules
3) Ducts of glands

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6
Q

What are the functions of cuboidal epithelium?

A

1) Absorption
2) Secretion
3) Barrier
4) Conduit

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7
Q

What are the locations of nonciliated simple columnar epithelium?

A

1) Stomach

2) Intestines

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8
Q

What is the location of ciliated simple columnar epithelium?

A

Uterine tubes

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9
Q

What are the functions of simple columnar epitheilum?

A

1) Absorption
2) Secretion
3) Barrier

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10
Q

What are the locations of ciliated pseudostratified columnar epithelium?

A

1) Trachea
2) Bronchi
3) Ducts of male reproductive system

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11
Q

What are the functions of ciliated pseudostratified columnar epithelium?

A

1) Secretion
2) Absorption
3) Barrier
4) Transport

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12
Q

What are the locations of nonkeratinized stratified squamous epithelium?

A

1) Esophagus
2) Distal anal canal
3) Vagina

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13
Q

What is the location of keratinized stratified squamous epithelium?

A

Epidermis

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14
Q

What are the functions of the stratified squamous epithelium?

A

1) Barrier

2) Protection

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15
Q

What are the locations of transitional (urothelium) epithelium?

A

1) Ureters
2) Urinary bladder
3) Urethra

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16
Q

What are the functions of transitional (urothelium) epithelium?

A

1) Barrier
2) Protection
3) Distension

17
Q

Are primary cilia motile or nonmotile?

A

Nonmotile

18
Q

What is the defect in Kartagenar syndrome?

A

Defective dynein arms lead to immotile cilia and flagella

19
Q

What is the arrangement of microtubules in flagella?

A

9 doublets + 2 singlets arrangement

20
Q

Glycocalyx reacts with what stain?

A

PAS

21
Q

What is contained in the terminal web to mediate movement?

A

1) Myosin II

2) Tropomyosin

22
Q

Are sterocilia actually cilia?

A

No - they are elongated microvilli

23
Q

Are sterocilia motile or nonmotile?

A

Nonmotile

24
Q

What is an example of epithelium that is vascularized?

A

Stria vascularis

25
Q

Where is the stria vascularis located?

A

Cochlear duct

26
Q

What is the function of the stria vascularis?

A

Produces endolymph

Cell Bio I (11 decks)

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