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analizatori

QuestionAnswer
ANALIZATORII sisteme morfofunctionale prin intermediul carora,la nivel cortical, se realizeaza analiza cantitativa si calitativa a stimulilor din mediul extern si intern care actioneaza asupra receptorilor
ce determina in ariile corticale excitatiile propagate pe caile senzitiva? SENZATII
componentele analizatorilor SEGMENT PERIFERIC , INTERMEDIAR SI CENTRAL
SEGMENTUL PERIFERIC =receptorul formatiune specializata percepe o anumita forma de energie din mediul extern sau intern sub forma de stimuli
SEGMENTUL INTERMEDIAR =de conducere =caile nervoase prin care impulsul nervos e transmis la scoarta cerebrala
caile ascendente sunt directe si indirecte
calea directa sinapse putine impulsuri conduse rapid proiectie corticala intr-o arie specifica fiecarui analizator
calea indirecta =sistemul reticular ascendent activator impulsuri conduse lent proiectie corticala difuza si nespecifica
SEGMENTUL CENTRAL aria din scoarta cerebrala aici ajunge calea de conducere aici impulsurile suntr transformate in senzatii specifice
Created by: 1063179990368424