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Nervous System
By Allison Merritt, Tyler Tunell
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What is the Nervous System?
Made of Neurons Controls body functions and processes Divided into CNS, and PNS
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Neurons
A specialized cell in the nervous system Carries neural impulses through a complex
system of neurons 3 types: Sensory, Motor, and Interneuron's
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Neurons
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Brain Structure/ Function
Forebrain –5 main regions: Thalamus, Hypothalamus, Amygdala, Hippocampus, and Cerebral Cortex
Hindbrain – 3 areas: Medulla, Cerebellum, and Pons
Midbrain
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Brain Structure/ Function
Central Nervous System Peripheral Nervous System
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Brain Structure/ Function
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Anatomy and Function of Spinal Cord
Link between PNS and brain White matter Gray matter Dorsal root Ventral root Reflexes Intervertabral Disk Disease
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Anatomy and Function of Spinal Cord
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Sensory Somatic and Autonomic Nervous System
Somatic Autonomic Plexus Sympathetic Parasympathetic Drugs, and medications Receptors
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Clinical Practice
Aids in determining location of a defect in nervous system
Tests:– Menace response– Pupillary light reflex– Classic reflex– Gag reflex– hearing
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Anesthetics and diseases
block sodium ions across membrane Extremely useful Surgical purposes Ataxia-uncontrollable movement Atrophy-muscles shrink Listeriosis-infection that affects the brain