Nervous System 6th Grade Health

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Nervous System6th Grade Health

• Mr. Springer

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Nervous System Fast Facts

• The brain weighs about 3 pounds

Gross Picture Alert!
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Nervous System Fast Facts

• The brain contains about 10 billion cells
  that regulate
• Your conscious acts
• Ex. Walking, talking, playing the piano
• Your involuntary functions
• Ex. Coughing, blinking, swallowing, breathing
• And your emotions
• Ex. Love, anger

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Nervous System Fast Facts

• The nervous system requires oxygen to do its
  work.
• Ex. 15 seconds without oxygen will cause us to
  lose consciousness
• Ex. 4 minutes without oxygen will cause
  irreparable damage to the brain and even death

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The Job Of The Nervous System

• Sends and interprets messages
• Allows the entire body, inside and out, to work
  together

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• Neurons
• (Nerve Cell)- specialized cells that carry
  information from the brain to the body and from
  the body to the brain

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(No Transcript)
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Real life Microscope images of nerves!
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Vocabulary

• Central Nervous System- includes the brain and
  spinal cord, its the bodys main control center

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Vocabulary

• Peripheral Nervous System- includes the nerves
  that connect the CNS to all parts of the body

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Sensory Nerves Motor Nerves

• You have two types of nerves
• Sensory- carries messages from the sense
  receptors to the brain and spinal cord
• Motor- carries messages from the brain to the
  muscles, glands, and other body structures,
  resulting in actions

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Parts Of The Brain

• Cerebrum- its the largest part of the brain, it
  controls your ability to think, memorize, and
  learn. It also receives messages for your senses
  (sight, hearing, smell, touch, and taste)
• Cerebellum- it controls balance, posture, and
  coordination.
• Medulla- it controls you involuntary muscle
  actions such as breathing.

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Cerebrum
Cerebellum
Medulla
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Problems With The Nervous System

• MS (Multiple Sclerosis)- degenerative disease in
  which the protective outer coating of nerves is
  damaged, thus the nerves no longer work properly
• Problems with thinking and memory

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Problems With The Nervous System

• Parkinsons Shaking and stiffness of the arms
  and legs.
• Epilepsy Seizures, as a result of abnormal
  electrical activity in brain.
• Alzheimers affects mostly older people, it is
  inflamed areas in the brain and death of neurons
  (atrophy). Leads to memory loss and dementia

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Neck/Spine Injuries

• Can lead to paralysis
• (loss of feeling and mobility in parts of the
  body)
• FACT The medulla is part of your spinal cord. If
  you break your neck, you may damage this part of
  your brain. If this part of your brain is damaged
  the result can be death because your organs shut
  down!

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Brain Diagram Without Labels
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Brain Diagram (W/Labels)

• http//www.edhelper.com/teachers/health_Brain_with
  _Labels.htm

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Nervous System Diagram(W/O Labels)

• http//www.edhelper.com/teachers/health_Nervous_Sy
  stem.htm

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Nervous System Diagram (W/Labels)

• http//www.edhelper.com/teachers/health_Nervous_Sy
  stem_with_Labels.htm

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Review

• At this website, we will connect nerves from
  different body parts to the section of the spinal
  cord they connect to.
• Notice the parts of the brain that light up.
• (That section of the brain controls the body
  part)
• Click Heregtgtgtgtgtgt
• (other) Brain Gamesgtgtgtgt