Summary: Nervous System 6; Reflex Arc
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1.11 nervous system 6; reflex arc
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rapid, predictable, and involuntary response to a stimulus
reflex -
occurs over pathways called reflex arcs
reflex -
(example) pulling your hand away from a hot stove
somatic -
carries message to the integration system
sensory neuron -
processes information and directs motor output
CNS (integration center) -
the muscle or gland to be stimulated
effector organ -
simplest type of reflex arc
two-neuron reflex arcs -
cord-mediated and cranial reflexes are examples of
two-neuron reflex arcs -
fastest and simplest reflexes
cord-mediated reflexes -
why a chicken can run with its head cut off
cord-mediated reflexes
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