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SISTEMULSISTEMUL

NERVOSNERVOSNEURONULNEURONUL

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-

ESTE UNITATEAESTE UNITATEAMORFOFUNCTIONALA AMORFOFUNCTIONALA A

SISTEMULUI NERVOSSISTEMULUI NERVOS-ARE FORM STELAT,-ARE FORM STELAT,

PIRAMIDALPIRAMIDAL,, ROTUND,ROTUND,OVALAROVALAR

-POT FI: UNIPOLARI,-POT FI: UNIPOLARI,

BIPOLARI, MULTIPOLARIBIPOLARI, MULTIPOLARI

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ESTE ALCTUIT DIN:ESTE ALCTUIT DIN:

CORP CELULARCORP CELULARAXONAXON DENDRITEDENDRITE

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CORPUL CELULAR FORMEAZ SUBSTANACORPUL CELULAR FORMEAZ SUBSTANA

CENUIE DIN NEVRAX ICENUIE DIN NEVRAX IGANGLIONIIGANGLIONII

PREZINT:PREZINT: NEURILEMNEURILEM

NEUROPLASMNEUROPLASM NUCLEUNUCLEU

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PRELUNGIRILE CITOPLASMATICE:PRELUNGIRILE CITOPLASMATICE:DENDRITELEDENDRITELE

-SUNT EXTREM DE RAMIFICATE-SUNT EXTREM DE RAMIFICATE -CONDUC INFLUXUL NERVOS-CONDUC INFLUXUL NERVOS

AFERENTAFERENT

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AXONULAXONULPRELUGIRE UNIC, LUNGPRELUGIRE UNIC, LUNG

PREZINT:PREZINT: AXOLEMAXOLEM AXOPLASMAXOPLASM TEACA DE MIELINTEACA DE MIELIN TEACA SCHWANNTEACA SCHWANN TEACA HENLETEACA HENLE

TRANGULAII RANVIERTRANGULAII RANVIER BUTONI TERMINALIBUTONI TERMINALICONDUCE INFLUXUL NERVOS EFERENTCONDUCE INFLUXUL NERVOS EFERENT

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PROPRIETILE NEURONULUIPROPRIETILE NEURONULUI

EXCITABILITATEA= c!c"##$EXCITABILITATEA= c!c"##$%#$&"$" '"" ($ &)*!+($ !&"%#$&"$" '"" ($ &)*!+($ !&"%"$*#)&" *!$c".c$ / c0"+$ +1&%"$*#)&" *!$c".c$ / c0"+$ +1&

*#"%+/"2*#"%+/"2 CONDUCTIBILITATEA=!&1!&"$##$ ($CONDUCTIBILITATEA=!&1!&"$##$ ($

+#1!&1!3&$ "%!+/*+&"/1& $&'1*$+#1!&1!3&$ "%!+/*+&"/1& $&'1*$

!&" 41" ! / #$&%"0""/$ c$*#1&,!&" 41" ! / #$&%"0""/$ c$*#1&,+($ $/$ *+# #&*%"*$, ++" $+&1+($ $/$ *+# #&*%"*$, ++" $+&1*+ 1&3 $$c#1&*+ 1&3 $$c#1&

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