Nervous System

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Nervous System
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Nervous System

• How did our nervous system work in the Impulse
  Activity we just completed?
• We sensed the touch.
• A message was sent to our brain.
• Our brain sent a message to our muscles.
• Our muscles squeezed the hand.

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Organs of the Nervous System

• Brain uses information it receives from nerve
  impulses to coordinate actions

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Organs of the Nervous System

• Nerves carry messages
• throughout the
• body

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Organs of the Nervous System

• Spinal Cord Central communication system.
• Nerve center
• Messages are sent to the brain through the spinal
  cord.
• Exception Reflexes skip the spinal cord and go
  straight to the brain.

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Functions of the Nervous System

• Functions include
• Control center
• Communication network
• Coordinates all actions and reactions
• Send messages as electrical impulses

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Functions of the Nervous System

• Functions include
• Allows us to
• Think
• Evaluate
• Remember

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Functions of the Nervous System

• Functions include
• Sensory Input- Senses send messages to the brain.
• Integration- The brain interprets and translates.
• Motor Output- The brain sends messages to body.

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Functions of the Nervous System

• Functions include
• Central Nervous
• System- Maintains
• homeostasis by
• regulating vital body
• functions such as
• breathing, heart rate,
• hormones, etc.

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Functions of the Nervous System

• Functions include
• Peripheral
• Nervous System-
• Sensory Neurons- Carry information toward the
  central nervous system
• Motor Neurons- Send impulses away from the
  central nervous system