Anfis Saraf Sensori-Fera

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    ANATOMI DAN FISIOLOGISISTEM SARAF SENSORI

    Oleh : Ns. Fera Liza, M.Kep Sp.Kep.MB

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    SISTEM SENSORIK =

    SENSIBILITAS, PERASAAN

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    Sistem Sensri

    Berperan pentin! "t# mempertahan#an#ehi$"pan man"sia terha$ap %aha&a &!men!an'am

    A$an&a %aha&a ts% $apat $i#etah"i$en!an 'ara : melihat, men$en!ar,men'i"m,merasa#an rasa n&eri, rasa

    ra%a, rasa panas, rasa $in!in $s%. Sistem sensri menempat#an man"sia

    %erh"%"n!an $en!an se#itarn&a.

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    SISTEM SARAF

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    SENSASI (SENSIBILITAS) A*A + :

    . Sensasi S"per-sial

    . Sensasi $alam

    /.

    Sensasi 0iseral+. Sensasi #h"s"s

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    lan1"tan 2.

    1. SENSASI SUPERFISAL(TAKTIL)

    = EKSTEROSEPTIF= PROTEKTIF

    MEN34R4S : RASA RABARASA N5ERI

    RASA S464

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    RABA

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    N5ERI

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    lan1"tan 2

    . SENSASI DALAM= SENSASI PROPRIOSEPTIF

    MENGATUR :

    7 RASA 3ERAK (KINETIK)

    7 RASA SIKAP (STATO3NESIA) $ari tt 8 persen$ian

    7 RASA 3ETAR (PALLEST6ESIA)

    7 RASA TEKAN *ALAM7 RASA N5ERI 9 *ALAM OTOT

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    lan1"tan 2

    3. SENSASI VISERAL(INTEROSEPTIF)

    *ihantar melal"i sera%"t tnm aeren

    Men'a#"p :

    Rasa lapar Rasa ene#

    Rasa n&eri pa$a 0isera

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    lan1"tan 2

    +. SENSASI KHUSUS

    *iat"r leh sara ta# tertent" :

    Melip"ti :

    7 MEN36I*4 ( N.I)

    7 MELI6AT (N.II)

    7 MEN*EN3AR 8 KESEIMBAN3AN (N. ;III)

    7 MEN3E

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    ANATOMI SEL SARAF

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    ANATOMI SISTEM SENSORIK

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    / TIN3KATAN NE4RON

    *ARI RESEPTOR *I PERIFER SAMPAI KEKORTEKS SENSORIK *I OTAK

    AL4R SENSORIK SEK4RAN37K4RAN3N5A A*A / TIN3KAT NE4RON.

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    / TIN3KATAN NE4RON

    . Imp"ls %er1alan $ari reseptr $i perier#e %a$an sel ne"rn tin!#at pertama(primer) $i 3AN3LION AKAR *ORSAL

    $ari sara spinal.

    . A#snn&a men"1" #e sentral,

    %ersinaps $en!an ne"rn tin!#at (se#"n$er) $i KORN4 POSTERIORME*4LA SPINALIS ata" INTI 6OMOLO3

    *I BATAN3 OTAK

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    lan1"tan2

    A#sn ne"rn se#"n$er melintasi !aris ten!ah$an men"1" pa$a sisi se%elahn&a (#ntralateral),#em"$ian nai# se%a!ai ARAS SPINOTALAMIKata" LEMNISK4S ME*IALIS men"1" #e sinaps%eri#"tn&a $i T6ALAM4S.

    /. Ne"rn $i thalam"s, %iasan&a %er"pa ne"rn

    tin!#at ti!a (tersier) terleta# $i #mple#s;ENTROBASAL TALAM4S $an %erpr&e#si melal"i#a#i POSTERIOR KAPS4LA INTERNA KE KORTEKSSENSORIS *I 3IR4S POSTSENTRAL (AREA

    BRO*MAN)

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    *ISIMP4LKAN

    . Sistem sensri# men&ilan!

    Inrmasi sensri# $ari separ"h %a$an

    %erpr&e#si #e talam"s 8 #rte#s

    #ntralateral. Ne"rn tin!#at I %era$a $i !an!lin a#ar $rsal

    /. Ne"rn tin!#at II %era$a $i #rn" psterir

    me$"lla spinalis

    +. Ne"rn tin!#at III $i talam"s

    Me7rela& imp"ls #e #rte#s

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    RESEPTOR

    Mer"pa#an sel7 sel #h"s"s "t#men$ete#si per"%ahan #h"s"s p$lin!#"n!an

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    RESEPTOR SENSORIK

    . Reseptr e#stersepti

    . Reseptr prpisepti

    /. Reseptr intersepti

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    RESEPTOR EKSTEROSEPTOR

    Men'a#"p reseptr &! terli%at ter"tamap$ lin!#"n!an e#sternal, &ait" :

    7 Krp"s#es (%a$an Meissner),

    7 Krp"s#el Mer#el "t# rasa ra%a

    7 B"l%"s Kra"ss "t# rasa $in!in

    7 Krp"s#el R">ni "t# rasa panas

    7 41"n! sara %e%as "t# rasa n&eri

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    6"%"n!an Man"sia *! *"nia L"ar T1$ Melal"i ReseptrSensri# *pt Ber"pa :

    1. RESEPTOR EKSTEROSEPTIF

    Berespn th$ stim"l"s $ari lin!#"n!an

    e#sternal, termas"#

    7 0is"al

    7 a"$itri

    7 ta#til

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    . RESEPTOR PROPIOSEPTIF

    Misaln&a &! menerima inrmasimen!enai

    psisi %a!ian t"%"h ata" t"%"h $ir"an!an

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    /. RESEPTOR INTEROSEPTIF

    Men$ete#si #e1a$ian internal seperti

    per"%ahan te#anan $arah

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    Sistem sensri# smati# menerima inrmasiprimer $ari reseptr e#stersepti $an

    prprisepti

    A$a + s"%#elas ma&r $r sensasismati#, &ait" :

    1. Sensasi nyei

    $i'et"s#an leh ran!san! &! $apat

    men'e$erai (n?i"s)

    !. Sensasi s"#" ($e%a&)

    ter$iri $ari $ari rasa panas $an rasa

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    + s"%#elas ma&r $ari sensasi smati#, &ait"

    /. Rasa (sensasi) si'a

    $i'et"s#an leh per"%ahan me#anis $i tt

    $an persen$ian, $an men'a#"p rasa si#ap

    an!!ta !era# serta !era#an an!!ta !era#(#inestesia)

    +. Rasa (sensasi) $e'an *i+e$"s'anleh stim"l"s me#anis &! $i%eri#an p$perm"#aan t"%"h

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    a$i %ila seseran! men!alami!an!!"an perasaan $apat $ise%a%#anleh !an!!"an pa$a :

    7 reseptr,

    7 #n$"#si sara

    7 sera%"t sara,

    7 tra#t"s

    7 $a&a persepsi.

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    Any,"es$i-n