Hjärta/kärl Flashcards

1
Q

hjärtats lager

A

endokardium:

  • endotel
  • lamina propria
  • subendotelialt lager: Purkinjefiber

myokardium (interkalarplattor)

epikardium:

  • subepikardiellt lager (adipocyter)
  • mesotel
  • kranskärl
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2
Q

purkinjefiber

A
  • geleaktiga/uppsvällda (mkt glykoproteiner i cytoplasman)
  • stora, ljusa
    (- Bets karmin: kraftigt rödviolett)
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3
Q

vad färgar Bets karmin?

A

glykogen, mkt i Purkinjeceller

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4
Q

kännetecken elastisk artär

A

elastiska fibrer dominerande

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5
Q

komponenter i en kärlvägg

A

Tunica intima

  • endotel
  • lamina propria
  • LEI
Tunica media (SMC, elastiska fibrer, vasa vasorum - kapillärer)
- LEE

Tunica adventitia (tät oorganiserad bindväv, elastiska fibrer, adipocyter, vasa vasorum)

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6
Q

argumentordning differentiering artär/ven

A
  1. kärlväggens storlek
  2. största komponenten (media/adventitia)
  3. LEI/LEE
  4. kollapsad
  5. elastiska fibrer
  6. plasma/erytrocyter i lumen
  7. strukturell variation
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