1.3 zelularteko loturak Flashcards

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1
Q

zer dira

A

ondoz ondoko zelulen arteko konexioak
mintz plasmatikoen arteko loturak
1. desmosomak
2. lotura estuak
3. gap

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2
Q

desmosomak nolakoak

A
  • lotura gogor
  • tentsio handiko zeluletan (epitelio ,miokardio)
  • zelularteko gune zabala (200 A)
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3
Q

desmosoma egitura

A
  • plaka desmosomiko: proteina plaka/disko
  • kaderina: glukoproteina : diskoetatik atera, mintzak zeharkatu, 2 diskoak lotu
  • keratina: alde zitoplasmatikoan, diskoak zitoeskeletoei lotu
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4
Q

lotura estua / oklusio lotura nolako

A
  • zelularteko gunerik ez
  • fun: zelula arteko ur galera prebenitu
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5
Q

oklusio loturak egitura

A

gune txiki
proteina konplexuak– mintza zeharkatu–mintzak lotu

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6
Q

GAP loturak nolakoak

A
  • zelularteko gune txikia
  • FUN : 2 zelulen komunikazioa = funtzionamendu sinkronizatua ahalbidetu
  • adb : miokardio zelulak = uzkurduren sinkronizazioa
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7
Q

GAP loturen egitura

A

kanal intrazelularrak = konexina proteinaz osatuta

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