Spinal Cord Reflexes
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| Dorsal and ventral roots join to form a mixed nerve that carries both afferent and efferent nerves | Spinal Nerve
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| functional groups of neuron (interneurons), limited input and output destinations, may stimulate/depress part of the brain and spinal cord | Neuronal Pool
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| Spreads stimulation to many neurons/neuronal pools in CNS (Vision---conscious I see, unconscious posture and balance) | Divergence
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| Brings many input sources into a single neuron (Breathing) | Convergence
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| Moves information in a single line (pain) | Serial Processing
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| moves info along several paths simultaneously (pain, withdraw, cuss) | Parallel Processing
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| automatic responses coordinated within the spinal cord, through sensory, motor and interneurons | Reflex
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| sensory neurons synapse directly on motor neurons, rare (stretch reflex)Complexity of circuit | Monosynaptic Reflex Arc
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| at least one interneuron is between sensory and motor neuron, (tendon reflex, withdraw reflex)Complexity of Circuit | Polysynaptic Reflex Arc
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| genetically determined Developemental Reflex | Innate Reflexes
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| Learned Developemental Reflex | Acquired Reflexes
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| Control Skeletal Muscle contractions, Includes superficial and stretch reflexes Response Reflex | Somatic reflexes
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| Controls actions of smooth muscle, glands,cardiac muscle and adipose tissue, Response Reflex | Visceral (Autonomic) Reflexes
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| Processed in the Spine | Spinal Reflexes
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| Processed in the brain | Crainial Reflexes
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| Occur on the same side of the body as the stimulus, stretch, tendon, withdraw reflex | Ipsilateral Reflex arcs
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| Occur on the opposite side of the stimulus, occur simultaneously with flexor reflex by reverberating circuits until consciously overridden | Contralateral Reflex arcs
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| monosynaptic reflex in which muscle spindles are the receptors, that have the least delay in sensory and motor output (patellar reflex) | Stretch Reflex
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| bags of fibers, innervated by sensory/motor neurons | Intrafusal Fibers
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| Maintain tone, contract muscle | Extrafusal Fibers
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