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Spinal Refleksler

Spinal Refleksler. Yrd. Doç. Dr. Sefa Gültürk Fizyoloji Anabilim Dalı Cumhuriyet Üniversitesi Tıp Fakültesi sgulturk@cumhuriyet.edu.tr. Spinal Cord -medulla spinalis. The Spinal Cord. The spinal cord. Spinal nerves innervate specific regions of the body

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Spinal Refleksler

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  1. Spinal Refleksler Yrd. Doç. Dr. Sefa Gültürk Fizyoloji Anabilim Dalı Cumhuriyet Üniversitesi Tıp Fakültesi sgulturk@cumhuriyet.edu.tr

  2. dr. sefa gültürk

  3. dr. sefa gültürk

  4. Spinal Cord -medulla spinalis dr. sefa gültürk

  5. dr. sefa gültürk

  6. The Spinal Cord dr. sefa gültürk

  7. The spinal cord • Spinal nerves innervate specific regions of the body • Attach to spinal cord segments via two roots • posterior - sensory inputs • Dorsal root ganglion • anterior - motor outputs dr. sefa gültürk

  8. dr. sefa gültürk

  9. Parts of a Reflex Arc • Receptor: sensitive to a specific change • Sensory neuron: transmits nerve impulse from the receptor to brain or spinal cord dr. sefa gültürk

  10. Components of a reflex arc • Reflex arc has five components: • receptor • sensory neuron • integration centre • motor neuron • Effector • Somatic reflex – skeletal muscle • Autonomic reflex – smooth muscle, cardiac muscle or gland dr. sefa gültürk

  11. dr. sefa gültürk

  12. Gerilme refleksi dr. sefa gültürk

  13. Stretch-gerilme refleksi ve resiprok inhibisyon • Muscle spindle:stretch of muscle spindle generates sensory impulses • excitation of agonist • inhibition of antagonist dr. sefa gültürk

  14. Stretch-gerilme refleksi ve resiprok inhibisyon dr. sefa gültürk

  15. Stretch Reflex dr. sefa gültürk

  16. Tendon reflex • Golgi tendon organs detect tension • generate sensory impulses • inhibition of agonist • excitation of antagonists • Can override stretch reflex dr. sefa gültürk

  17. Stretch Reflex : Patellar Tendon Reflex : Monosynaptic Reflex dr. sefa gültürk

  18. Flexor reflex • Flexor reflex • painful stimulus causes withdrawal of threatened body part • overrides other signals using same pathways dr. sefa gültürk

  19. dr. sefa gültürk

  20. dr. sefa gültürk

  21. dr. sefa gültürk

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