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Biology 315. Chapter 12. Nervous Tissue

Parts of the Nervous System . 1. Central Nervous System CNSBrain Spinal Cord 2. Peripheral Nervous System PNSAfferent : brings information from the periphery TO the CNSEfferent : sends information from CNS out to periphery. PNS . Afferent = Sensory Efferent = Motor Somatic Nervous System

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Biology 315. Chapter 12. Nervous Tissue

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    1. Biology 315. Chapter 12. Nervous Tissue

    2. Parts of the Nervous System 1. Central Nervous System CNS Brain Spinal Cord 2. Peripheral Nervous System PNS Afferent : brings information from the periphery TO the CNS Efferent : sends information from CNS out to periphery

    3. PNS Afferent = Sensory Efferent = Motor Somatic Nervous System = “generic” motor nerves, voluntary control of muscles Autonomic Nervous System, Involuntary Parasympathetic : “vegetative” functions Sympathetic : “fight or flight” Enteric Nervous System : the “brain” of the gut

    4. True Blue Words and Terms Nerve Tract Gray Matter White Matter Nucleus Ganglion Plexus Stimulus Action Potential

    5. Functions of the Nervous System Sensory Light shines in your eye; impulse carried to brain from retina Integrative Vision processing area integrates all information and formulates a response Motor Pupillary constriction

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