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The Nervous System

Explore the intriguing world of the nervous system, its functions, and the basic structural unit, the neuron. Learn about transmitting electrochemical impulses and the role of ions in nerve signaling. Discover the central and peripheral nervous system divisions, including the somatic and autonomic systems. Dive deeper into the sympathetic and parasympathetic branches, which regulate the body's involuntary functions. 8

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The Nervous System

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  1. The Nervous System • Don’t get nervous about the nervous system

  2. Functions of the Nervous System • 1. Communication and coordination • Adapt and respond to changes from both inside and outside the body to maintain homeostasis • 2. Site of reasoning- your brain

  3. Basic structural unit: the neuron • How does a neuron function? • Transmitting electrochemical impulses along a nerve • Flow of ions across membrane

  4. Two main divisions • Central nervous system (CNS): Brain and spinal cord • Peripheral nervous system

  5. 2. Peripheral nervous system- the nerves A. Somatic: Carries information between your skin, brain and muscles B. Autonomic- maintains balance of the involuntary functions of your body a. Sympathetic- fight or flight response b. Parasympathetic- counters sympathetic

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