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Zusammenfassung Nervensystem

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Alle Angaben ohne Gewähr. Es kann sein, dass ich mich bei einigen Sachen vertippt habe. Ich habe sehr viel Zeit und Mühe investiert und habe bereits viel gutes Feedback dazu bekommen.

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  • January 22, 2021
  • 16
  • 2019/2020
  • Summary
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NERVENSYSTEM

,INHALT
Aufbau des Nervensystems....................................................................................................... 1
Anatomie eines Neurons .......................................................................................................... 2
Neuronen & Gliazellen .............................................................................................................. 3
SIgnale am Neuron ................................................................................................................... 4
Erregungsentstehung & Erregungsleitung im Neuron: Ruhepotential ............................... 5
Erregungsentstehung & Erregungsleitung im Neuron: Aktionspotenial ............................ 6
Erregungsleitung .............................................................................................................. 7
Erregungsübertragung an Synapsen sowie deren Beeinflussung ....................................... 8
Arten von Synapsen .................................................................................................................. 9
Neuronale Verrechnung ..................................................................................................10
Synapsengifte und deren Wirkungsweise zwei Beispiele ............................................ 11
Regulierung & Wirkung von Protein -& Steroidhormonen .................................................. 12
Peptidhormone ................................................................................................................ 12
Steroidhormone: Sexualhormone .................................................................................. 13
Wirkung des Schilddrüsenhormons: Thyroxin ............................................................... 14

, AUFBAU DES NERVENSYSTEMS

Nervensystem
ZNS - zentrales Nervensystem PNS - peripheres Nervensystem

• Gehirn & Rückenmark • Nerven, die verschiedene
Körpergewebe mit ZNS verbinden
→ wichtige Steuerungsprozesse
→ leiten Signale zum ZNS / erhalten
→ Informationsverarbeitung
Signale vom ZNS




afferente Bahnen - sensorische efferente Bahnen - motorische
Bahnen Bahnen

• Informationen von • vom ZNS einlaufenden
Sinneszellen & Sinnesorganen Informationen verarbeiten

• Zustand der Eingeweide • SIgnalweiterleitung




Autonomes
Nervensystem
Somatisches
Nervensystem • verbinden ZNS mit
Eingeweiden
• willkürliche Prozesse
(Muskelbewegungen) • unwillkürlich

(Eingeweide)




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