fisiologi reflex
TRANSCRIPT
![Page 1: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/1.jpg)
Reseptor & Fisiologi reflex
Ch.Effendi - Lab. I.Faal FK UNAIR
Edited by akmarawita kadir,hayati
Lab Faal FK UWKS
![Page 2: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/2.jpg)
Reflex
merupakan dasar
Mekanisme kerja sistem SARAF
![Page 3: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/3.jpg)
Medullaspinalis
Receptor
Sensoris
Motorik
Effektor
Komponen yang membentuk Reflex
![Page 4: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/4.jpg)
Reflex(reaksi dari alat tubuh terhadap adanya rangsangan,
disadari maupun tidak)
RGS
RECEPTOREFFERENT
Afferent
Saraf Pusat
EFFECTORmuscle
![Page 5: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/5.jpg)
RECEPTOR
• TEMPAT BERMULA TIMBULNYA REFLEK• FUNGSI :- MENIMBULKAN REFLEKTBH SEIMBANG
- MENIMBULKAN RASA TBH SADAR REALITA DUNIA
• MACAM-MACAM RECEPTOR:A. MECHANOREC :- M. DI KULIT
- M. DI TELINGA (COCHLEA) - M. VESTIBULAR APP - KINESTHETIC REC MUSCLE
SPINDLE GOLGI TENDON APP - PRESSOREC DLM CV DAN PARU
B. THERMORECC. CHEMOREC: CAROTIC/AORTIC BODIES, TASTE BUDS
OLFACT CELLSD. ELECTROMAGNETIC REC DLM RETINA
![Page 6: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/6.jpg)
CONDUCTING SYSTEM
• REC SSP END PLATE
dorsal root ventral root
HUKUM BELL MAGENDIC
![Page 7: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/7.jpg)
EFEKTOR
• ALAT TBH YG MENJAWAB IMPULS YG DIPANCARKAN REFLEK
• DIKENDALIKAN OLEH SARAF
• MIS : OTOT POLOS, OTOT SKELET, SEL KELENJAR
![Page 8: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/8.jpg)
Reflex
Fisiologis Patologis
Somatik Otonomik
BABINSKI, CHADDOCK, GORDON
SALIVASI, LAKRIMASI, BATUK, BERSIN, MENELAN, BAROREFLEX, CHEMOREFLEX, RESPIRASI
![Page 9: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/9.jpg)
Reflex Somatik
Monosynaptic
PolysynapticREFLEX PALING SEDERHANA MYOTATIC = STRETCH REFLEX
ADEKUAT STIMULUS KONTRAKSI OTOT
( STIMULUS: REGANGAN OTOT EXT, REC:MUSCLE SPINDLE, JWB:KONTRAKSI OTOT)
![Page 10: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/10.jpg)
Reflex Fisiologis Somatik
•Monosinap
•single sinap di
•anterior motorneuron
•contoh :
•Patella reflex
•Achilles reflex
•Biceps reflex
•Triceps reflex
•Polisinap
•sinap lebih dari 1
•contoh :
•Flexor reflex
•Extensorreflex
•Reflex berjalan
•Reflex berdiri dll.
![Page 11: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/11.jpg)
![Page 12: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/12.jpg)
Flexor reflex
( crossed ) Extensor reflex
Polysynaptic reflexcontoh Withdrawal reflex
&
![Page 13: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/13.jpg)
Flexion Crossedextension
Berjalan Berlari
![Page 14: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/14.jpg)
Monosynaptic reflexContoh :
Patella reflexAchilles reflexBiceps reflexTriceps reflexRadial reflexMasseter reflex
Stretch reflex = reflex regang
Contoh :
![Page 15: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/15.jpg)
![Page 16: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/16.jpg)
Medulla spinalis Saraf sensoris
Saraf motorik
Muscle spindle
Muscle fiber
Alur busur Stretch reflex
![Page 17: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/17.jpg)
Patella Reflex
•Rec : muscle spindles
•Sensoris : Ia / II
•Pusat : motorneuron medull spinalis
•Motorik : A
•Effektor : Muscle fiber
![Page 18: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/18.jpg)
Saraf motorik A
Muscle spindle
Saraf sensoris Ia / II
Saraf motorik A
Muscle fiber
![Page 19: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/19.jpg)
Saraf motorik A menginervasi :
Muscle fiberSaraf motorik A
menginervasi :
Muscle spindle
![Page 20: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/20.jpg)
Didalam suatu otot /muscle / musculus terdapat :
Muscle fibers
Diantara muscle fibers terdapat
Muscle spindles
![Page 21: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/21.jpg)
Muscle fiberFungsi : Kontraksi
Muscle spindleFungsi : Receptor
Terangsang oleh
tones / regangan, panjang pendek Otot
![Page 22: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/22.jpg)
Apakah mungkin Stretch reflex + pada penderita paralise
?
![Page 23: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/23.jpg)
Jawabnya :
ya
Paralise padakerusakan sistem pyramidalcontohnya penderita stroke
tidak
Poliomyelitis
![Page 24: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/24.jpg)
Mengapa demikian ???
Pekerjaan rumah
anda
![Page 25: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/25.jpg)
PUPILLARY LIGHT REFLEX
• REFLEK PUPIL TERHADAP CAHAYA
• PUSAT INTEGRASI MIDBRAIN
• MIOSIS : PUPIL MENGECIL (CAHAYA TERANG – SIMPATIS
• MIDIRIASIS : PUPIL MELEBAR : GELAP – PARASIMPATIS
• PERDARAHAN PADA MIDBRAIN / BATANG OTAK REFLEX (-)
POLYSYNAPTIC REFLEX
![Page 26: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/26.jpg)
GRASP REFLEX :• REFLEX MEMEGANG• PUSAT INTEGRASI : MIDBRAIN• MULAI TAMPAK PADA BAYI 5-6
BULANTONIC NECK REFLEX• REFLEX MENEGAKKAN KEPALA &
LEHER• REFLEX TONES OTOT-2 LEHER,• PUSAT INTEGRASI : NUCLEI MOTORIC
MEDULLA OBLONGATA & TECTUM
POLYSYNAPTIC REFLEX
![Page 27: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/27.jpg)
REFLEX YANG TERJADI AKIBAT RANGSANGAN VESTIBULAR YANG BERLEBIHAN :
NYSTAGMUS• GERAKAN BOLA MATA YANG FREKUEN
(SECARA REFLEKTORIS) DAN TIDAK DAPAT DIKENDALIKAN OLEH KEMAUAN (involuntary movement of the eye balls)
• AKIBAT VOR (vestibulo-ocular reflex) yang berlebihan NISTAGMUS
POLYSYNAPTIC REFLEX
![Page 28: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/28.jpg)
• IMPULS AFFERENT YANG BERASAL DARI 3 RESEPTOR VESTIBULAR GANGLION OF SCARPA N.C0HCHLEARIS CEREBELLUM
• Nn.VESTIBULARIS DI BRAIN STEM• SUPERIOR & LATERAL CEREBELLUM• LATERAL, MEDIALIS, SPINAL EFFEREN
MEDULLA SPINALIS (TRAC. VESTIBULOSPINALIS)
• SUPERIOR & MEDIAL EFERENT FLM (fasciculus longitudinalis medialis) Nn. MOTORIK UNTUK GERAKAN BOLA MATA DI BRAIN STEM (Nn. n.III, n.IV DAN n. VI) (gerakan bola mata ipsilateral dan kontralateral)
• = REFLEX VESTIBULO-OKULAR (VOR)
THALAMUS
![Page 29: Fisiologi Reflex](https://reader038.vdokumen.com/reader038/viewer/2022102605/54544ceab1af9f10398b4bf9/html5/thumbnails/29.jpg)
MOTION SICKNESS
• PENINGKTAN KEPEKAAN VESTIBULAR APP. / RANGSANGAN YG BERLEBIHAN OLEH KARENA PERJALANAN DARAT, LAUT, UDARA.
• INDIVIDU YANG HIPERSENSITIF
• Gx : VERTIGO, NAUSEA – VOMITUS, KERINGAT DINGIN, PUCAT – CEMAS –TAKUT.
POLYSYNAPTIC REFLEX