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Übersicht zum Thema Erregungsübertragung an Synapsen $5.27   Add to cart

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Übersicht zum Thema Erregungsübertragung an Synapsen

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  • April 16, 2024
  • 2
  • 2023/2024
  • Class notes
  • Fr.ross
  • All classes
  • Secondary school
  • Gymnasium
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Erregungsübertragung an Synapsen

Nervenzellen nehmen über synaptischen Endknöpfchen Kontakt zu anderen Zellen

• Andere Nervenzellen - Kontaktstelle = interneuronale Synapse
• Zu Muskelzellen - Kontaktstelle = motorische Endplatte

Funktion einer Synapse:

• Erregungs - bzw Informationsübertragung
• Hemmungsfunktion (Schutz vor Reizüber utung)
• Gedächtnis und Lernfunktion

Synapsen



Chemische Synapse Elektrische Synapse



• Interneuronale Synapse
• Motorische Endplatte

Bei der chemischen Synapse ist das Überträgemolekül eine chemische Substanz = Neurotransmitter

Bau interneuronale chemische Synapse (interneuronale = verbindet 2 Neuronen)

Synapse besteht aus:
• Präsynapse (synaptischen Endknöpfchen eines Neurons)
• Synaptischer Spalt
• Postsynapse (Membran der Dendriten bzw Somas des nachfolgenden Neurons)




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Postsynapse

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