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Biological Science

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Blutversorgung des Gehirns: Großhirn-Arterien

Das Gehirn wird von 4 großen Arterien versorgt:
- rechte und linke Arteria carotis interna
- rechte und linke Arteria vertebralis


Mitte: Unterseite Hypothalamus, 2 Teilchen in der Mitte Marmilarkörper

auch weite Teile des Parietallappens

Gehirnhälften sind nicht wirklich identisch, aber ähnlich.

Balken verbindet die beiden Hemisphären (Corpus callosum) -> größte Kommissur im Gehirn

Aquädukt; Struktur, die ums Aquädukt rum ist: zentrales Höhlengrau

Tektum, 4-Hügel-Platte: culiculi superiores (Wahrnehmung; geht hin zum corpus inaculatum laterale und inferiores (geht hin zum MEDIAL des Thalamus)

frontales augenfeld: wichtig, um frontale Augenbewegungen zu initialisieren , steuert äußere Augenmuskulatur

Gyrus vorm sulcus centralis => Gyrus precentralis
Gyrus hinter dem sulcus centralis => Gyrus postcentralis oberer Gyrus im Temprallappen => Gyrus……..#

Insel : Funktion : Geschmack, Schmerzverarbeitung

Unterscheid zwischen Brodmann-Areale: Schichten unterscheiden sich im Zellaufbau

unilateraler Neglect: rechter Parietallappen eher für räuml. Wahrn der Umgebung linker: räumnl. Wahrnehmung der eigenen Körperteile

bilaterale parietale Schädigung: Personen können nicht sagen, ob etwas aufrecht steht oder nicht; können Gegenstand benennen, aber nicht sagen, ob er richtig steht oder nicht.


mehrere Ausfallserscheinungen:

1. ganz massive räumlich Wahrnehmungsstörung Bsp.: Patientin schafft es nicht, sich richtig ins Bett zu legen

2. komplexere Zusammenhänge verstehen Beispiel: können diese Geschichte nicht erklären; Scheibe eingeschossen etc.; „da fliegt ein Hut“, verstehen aber nicht) oder: können im anderen Beispiel NUR das E oder NUR die As sehen…

Beispiel: Superior Temporal Sulcus
Zelle feuert auf alle Gesichter/Bilder, aber nur in einem bestimmten Winkel; je mehr schwarze Striche, desto mehr Aktionspotentiale wurden gezeigt; sehr spezifisch reagierende Zellen

temporale Pole = vorderster Punkt des Temporallappens…...

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