Spinal Refleksler Yrd. Doç. Dr. Sefa Gültürk Fizyoloji Anabilim Dalı

... konulu sunumlar: "Spinal Refleksler Yrd. Doç. Dr. Sefa Gültürk Fizyoloji Anabilim Dalı"— Sunum transkripti:

1 Spinal Refleksler Yrd. Doç. Dr. Sefa Gültürk Fizyoloji Anabilim Dalı
Cumhuriyet Üniversitesi Tıp Fakültesi

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4 Spinal Cord -medulla spinalis
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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

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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

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

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