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Human Communicative System

Human Communicative System - Human Communicative System...

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Human Communicative System Simple Nerve Cells All living things are made up of cells Neurons o Transmit information in the form of nerve impulses o From cell to cell Neurons Dendrites – receive Axon – conducts *Myelineated *demyelination can result in multiple sclerosis Axon terminal – transmits and establishes contact with another cell Synapse – site of contact Based on function and type Sensory and motor neurons Sensory carry impulses from sense organs Motor carry impulses to sense organs Nervous System Central Nervous System o Brain o Spinal Cord Peripheral Nervous System o Cranial Nerves 12 that arise from the brain o Peripheral nerves 31 that extend from the spinal cord
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Brain 3 parts o Cerebrum – largest part o Cerebellum Responsible for coordinating movement, planning, motor activities o Brain stem (severe injury usually means death) Controls vital functions such as breathing, heartbeat and blood pressure Cerebrum (forebrain) Left him – logical and objective
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