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SISTEM SARAF TEPI

SISTEM SARAF TEPI. Saraf Tepi. Nervus Spinalis, 31 pasang Nervus Cranialis, 12 pasang Ganglia Sensorik Ganglia Otonomik. Ujung-ujung Reseptor. Mekanoreseptor Thermoreseptor Nosireseptor Reseptor Elektromagnetik Kemoreseptor. Motor End-Plate.

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SISTEM SARAF TEPI

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  1. SISTEM SARAF TEPI

  2. Saraf Tepi • Nervus Spinalis, 31 pasang • Nervus Cranialis, 12 pasang • Ganglia Sensorik • Ganglia Otonomik

  3. Ujung-ujung Reseptor • Mekanoreseptor • Thermoreseptor • Nosireseptor • Reseptor Elektromagnetik • Kemoreseptor

  4. Motor End-Plate • ACh  reseptor ACh tipe nikotinik, pintu kanal ACh terbuka  influks Na+  terjadi end-plate potential • End-plate potential (jika cukup besar)  pintu kanal ion Na terbuka  influks Na  terbentuk potensial aksi • Potensial aksi  pelepasan ion CA2+ meningkat  kontraksi serabut otot • Segera terjadi hidrolisis asetilkolin oleh AChE  pintu kanal Ach tertutup  repolarisasi serabut otot

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