MICRO 20 Lecture Notes - Lecture 9: Patellar Reflex, Sciatic Nerve, Trigeminal Nerve

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23 Apr 2018
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Fast, predictable, but involuntary motor response to a stimulus. Network of neurons connecting receptor to effector in fewest neurons possible to avoid time delay. Each chemical synapse between receptor and effector produces a . 5ms time delay called synaptic delay. Structure that detects stimulus (protein) and converts it into action potentials in a sensory neuron. Neuron in cns that connects sensory neuron to motor neuron. Not always present and there can be more than one. Carries info from cns (integration center) to effector. Reflex that develop with age and is not present at birth. Somatic reflex effector is a skeletal muscle and initiated by the muscle spindle as the receptor. Reflex with smooth muscle or glands as the effector. Simplest of the reflex arcs with sensory and motor neurons but no interneurons. Include one or more interneurons and contains two or more synapse. Use spinal nerves with integrating center in gray matter of spinal cord.

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