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INERVASI SENSORIK. Dr. Mona Amelia, MBiomed. Definisi. Reseptor. Ganglion Posterior. Akson. Suatu sistem hantaran impuls dari perifer  susunan saraf pusat. Radix Posterior MS. Persepsi. Cornu Posterior MS. Cortex Cerebri. Tractus Spinothalamicus. Corona Radiata. Thalamus.

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inervasi sensorik

INERVASI SENSORIK

Dr. Mona Amelia, MBiomed

definisi
Definisi

Reseptor

Ganglion Posterior

Akson

  • Suatusistemhantaranimpulsdariperifer susunansarafpusat

Radix

Posterior MS

Persepsi

Cornu

Posterior MS

Cortex Cerebri

TractusSpinothalamicus

Corona Radiata

Thalamus

kasus khusus
KASUS KHUSUS
  • Beberapa organ sensorik diferensiasitingkattinggi
  • ORGANON SENSES
  • Reseptorkhusus (retina, utriculus, sacculus, vibrissae, tastebud, nociceptor, corpusculum Meissneri, thermoreceptor, corpusculum Paccini)
  • Ganglion  nucleus khususintra cranial
inervasi sensorik perifer
InervasiSensorikPerifer
  • Reseptor
  • Akson (serabutsarafperifer)
  • Ganglion sensorik
  • Neuron ordo 1
inervasi sensorik sentral
InervasiSensorikSentral
  • Cornu posterior medulla spinalis (substansiagrisea)
  • Tractusspinothalamicus (substansia alba)
  • Neuron ordo 2
  • Thalamus
  • Corona radiata (substansia alba)
  • Cortex cerebri (substansiagrisea)
  • Neuron ordo 3
slide6

Thalamus

ganglion

Tr. spinothalamicus

akson

Neuron ordo 1

Cornu posterior

reseptor

Neuron ordo 2

slide7

Corona radiata

Cortex cerebri

reseptor perifer
ReseptorPerifer
  • Eksteroseptif (kulit, otot)
  • Proprioseptif (otot, ligamentum, sendi)
  • Interoseptif (viscerae)
tiga sistem sensorik
TIGA SISTEM SENSORIK
  • Lemniscusmedialis– collumnadorsalis

diskriminasiraba, posisisendi, getar/ vibrasi

  • Tractusanterolateral

diferensiasi rasa raba, nyeri, suhu

  • Tractus trigeminal

diferensiasiraba, nyeri, suhudarikepala

terminal akhir jaras sensorik
Terminal AkhirJarasSensorik
  • Informasi aferen yang disadari  thalamus  cortex cerebri  interpretasi/ persepsi
  • Informasi aferen yang tidak disadari
    • cerebellum  koordinasi otot
    • reflek spinal lokal
  • Informasi aferen lain
    • mesencephalon  reflek visual
    • formatio reticularis
jaras sensorik

JARAS SENSORIK

INFORMASI SENSORIK SADAR

INFORMASI SENSORIKtak SADAR

pertanyaan ujian
PertanyaanUjian
  • Apaperbedaanperjalananimpulsnyeri-suhudanraba-getar?
klinis trigeminal neuralgia
Klinis Trigeminal Neuralgia
  • Neuralgia yang disebabkanolehrangsanganmendadak/ paroksismalpadasemuapercabangan N. V (Nn. V1-3) berupa rasa nyerishooting
  • Tic doloreoux (cabangdescendens trigeminal)
  • Gangguanvaskularisasipadabatangotak kelumpuhan N. V dansindroma Wallenberg

(defisitnyeri, suhu, raba, dst)

klinis
Klinis
  • Wallenberg syndrome

sindromaakibatinfarkbatangotak yang mengenaiNn. craniales, lemniscuslateralis, dansistemanterolateral,

Tapitidaktermasuklemniscusmedialis

SistemdescendensterkenapadajarasNn. IX dan X

Sistemkeseimbanganbisaterjadikarenaadajarasaferencerebellarisygterkena

thalamus
Thalamus
  • Pusat relay tractusascendens
  • JarasdarilemniscusmedialisberakhirpadaNc. ventral posterolateral thalami (VPL)
  • Jarasdari trigeminal berakhirpadaNc. ventral posteromedial thalami (VPM)
  • Jarasdarisistemanterolateralberakhirdimana????
thalamus1
Thalamus
  • Pada thalamus  modifikasiimpulsnyeri
  • Nucleus thalami  capsulainterna  corona radiata  gyruspostcentralis (homunculus cerebri), area asosiasi 1 dan 2 dilobusparietalis
formatio reticularis
FORMATIO RETICULARIS
  • Pusatjaga, kesadaran, danwaspada
    • Pusatrespirasidankardiovaskuler MO
    • Pusatmotorikterpadu (tractuscortico-reticulo-spinal)  pons
    • Sistemproyeksiascendens (ARAS, Ascending Reticulare Activating System)  kewaspadaan
    • NNcc. precerebellaris  hubunganbatangotakdengan cerebellum, keseimbangan
fr divisi lateral
FR DIVISI LATERAL
  • Sistemanterolateral
  • Sistem trigeminal
  • Sistemauditorik
  • Sistem visual
fr divisi medial
FR DIVISI MEDIAL
  • Tractusdescendens
  • Pusatjaga, kesadaran, kewaspadaanbertindak
  • Nc. raphe modulasitractusanterolateraldivisireticulo-spinal  responthdnyeri
next inervasi motorik
Next: Inervasimotorik

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(Al-Alaq: 1-5)