Epithelium I Flashcards

1
Q

What are the epithelial cell domains?

A

1) Apical2) Lateral3) 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 layers2) Cell shape in superficial layer3) Presence of specialization of plasma membrane

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4
Q

What are the functions of simple squamous epithelium?

A

1) Blood-brain barrier2) Filtration3) Exchange

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5
Q

Where is simple cuboidal epithelium found?

A

1) Thyroid follicles2) Renal tubules3) Ducts of glands

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6
Q

What are the functions of cuboidal epithelium?

A

1) Absorption2) Secretion3) Barrier4) Conduit

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7
Q

What are the locations of nonciliated simple columnar epithelium?

A

1) Stomach2) 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) Absorption2) Secretion3) Barrier

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10
Q

What are the locations of ciliated pseudostratified columnar epithelium?

A

1) Trachea2) Bronchi3) Ducts of male reproductive system

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11
Q

What are the functions of ciliated pseudostratified columnar epithelium?

A

1) Secretion2) Absorption3) Barrier4) Transport

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12
Q

What are the locations of nonkeratinized stratified squamous epithelium?

A

1) Esophagus2) Distal anal canal3) 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) Barrier2) Protection

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15
Q

What are the locations of transitional (urothelium) epithelium?

A

1) Ureters2) Urinary bladder3) Urethra

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16
Q

What are the functions of transitional (urothelium) epithelium?

A

1) Barrier2) Protection3) 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 II2) 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