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HE Test 3 > He 20 21 Preview > Flashcards

He 20 21 Preview Flashcards

1
Q

Five layers of tracheabronchole tree

A

Mucosa

muscularis

submucosa

cartilage

adventitia

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2
Q

Epithelium and Lamina Protpria

A

Epi: promarily barrier but also filters and humidifies

LP richly valcularized Loose CT, warms air and defends host

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3
Q

muscularis

A

smooth muscle, controls air flow

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4
Q

submucosa

A

valcularized DENSE irregular CT

  • pronounced when glands are present in it
  • these are seromucosa glands- secretions into lumen to moisten air, trap partilces

appears clear

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5
Q

cartilage layer

A

Hyaline cartilage

  • can be half rings or small plates
  • surrounded by dense CT (perichondrium) which adheres to adjacent structures

-structural support during exhalation

appears with obvious clear cells

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6
Q

Adventitia

A

dense CT: collagen /elastic fibers bind airways to surrounding organs
-stabilise position of tree
limin overstretching during inhalation

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HE Test 3 (6 decks)

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