HBT Epithelial Flashcards

1
Q

What is epithelial tissue needed for?

A

For protective and secretory purposes

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2
Q

What is the purpose of transport epithelium?

A

Protection, absorption and secretion

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3
Q

What is surface epithelium?

A

Continuous sheets of cells that cover body and organ surfaces and line hollow structures

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4
Q

What is glandular epithelium?

A

Downgrowth of epithelium into underlying deep tissue and proliferation (rapid reproduction) to form secretory glands

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5
Q

What are the morphological features of epithelial tissue?

A
  • Cellularity
  • Adhesion
  • Polarity
  • Attachment
  • Regeneration
  • Avascularity
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6
Q

What are the functions of epithelia?

A
  • Sensation
  • Secretion
  • Selection
  • Absorption
  • Protection
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7
Q

What terms are used to describe the thickness of epithelia?

A
  • Simple (one cell thick)

- Stratified (many cells thick)

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8
Q

What terms are used to describe the shape of epithelia?

A
  • Squamous
  • Cuboidal
  • Columnar
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9
Q

What is simple squamous epithelia used for?

A

Vessels and cavities

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10
Q

What is simple cuboidal epithelia used for?

A

Kidneys or bronchioles

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11
Q

What is simple columnar epithelia used for?

A

GI tract or uterine tubes

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12
Q

What is stratified squamous epithelia used for?

A

Skin and oesophagus

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13
Q

What is stratified cuboidal/columnar epithelia used for?

A

Sweat gland duct

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14
Q

What is pseudo-stratified epithelia used for?

A

Respiratory epithelium

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15
Q

What are the features of surface epithelia?

A
  • Basement membrane
  • Polarity
  • Contiguous and adhesive
  • No direct blood supply
  • High mitotic activity
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16
Q

What are the apical specialisations of surface epithelia?

A
  • Microvilli

- Cilia

17
Q

What is the basement membrane comprised of?

A
  • Basal lamina

- Reticular lamina

18
Q

What are the two types of glandular epithelium?

A

Exocrine and endocrine

19
Q

What does exocrine epithelia involve?

A

Merocrine, apocrine and holocrine

20
Q

What does endocrine epithelia involve?

A

Secretion from the base of the cell

21
Q

How do you classify glandular epithelia?

A
  • Secretion
  • Duct
  • Secretory portion
22
Q

What types of glandular secretion are there?

A
  • Mucous (glycoproteins + water)
  • Serous (proteins + water)
  • Mixed
23
Q

What types of glandular ducts are there?

A

Simple or compund

24
Q

What types of secretory portions are there?

A

Unicellular or multicellular (tubular, coiled or alveolar)