PONDER THIS

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PONDER THIS
What REALLY happened inside Johnnys head?
How do the brain, and the whole nervous system
work?
How common are these types of injuries?
How are Concussions Evaluated Treated?
Why cant athletes go back in the game if its
only a minor concussion?
What part of the brain gets injured in a
concussion?
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The Brain Needs lots of TLC Protection and
Nutrition
1. Outer layer scalp (skin) 2. Bony protection
Cranium (skull) 3. Meninges pia mater dura
mater
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Check out the Meningeal Layers in a REAL brain!
Image from http//faculty.une.edu/com/fwillard/Men
inges/
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The Brain Needs lots of TLC Protection and
Nutrition
4. Cerebrospinal Fluid (CSF) Cushions the
brain from a blow to the head Dec pressure
at the base of the brain Excretes waste
products through a one-way valve Transports
hormones to other areas of brain 5. Blood Brain
Barrier
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The Human Brain

• 1. 2 of the weight of the body
• 3 trillion cells
• Has gray and white matter
• Cerebrum learning, judgment, intelligence
• - left half of the brain controls the
  right side of the body, right brain controls left
  body
• - 4 lobes on each side match skull bone
  names theyre beneath

Images from Campbell Biology 7th Edition
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4 Areas of the Cerebrum

• Four lobes
• Parietal somatic sensory area, info from
  receptors in body is sent here
• Occipital- allows your brain to make sense of
  what your eyes see
• Temporal- makes sense of auditory stimuli ?
  hearing
• Frontal lobe- primary motor area ? allows
  conscious movement fine motor movements assoc
  w/ higher reasoning, socially acceptable
  behavior, areas of language comprehension

Images from Campbell Biology 7th Edition
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• Are you right or left brained?
• Take the quiz at
• http//www.web-us.com/brain/braindominance.htm
• Check this site out to see how knowing whether
  you have a dominant right or left brain can help
  you succeed in school
• http//web-us.com/brain/lrbrain.html

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• Cerebellum
• Coordinates and balances movement by comparing
  expected to actual movement
• Diencephalon
• Includes thalamus and hypothalamus and pineal
  gland
• Thalamus sensory inputs relayed to other parts
  of the brain
• Hypothalamus Connects hormones with nervous
  system controls body temperature, regulates
  involuntary nervous system
• Brain Stem
• Reflex center for heart rate, respiratory rate,
  swallowing, coughing, sneezing
• Connects spinal cord to brain

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Hydrocephalus
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Nervous System Review Games

• Group Trivia (basic review questions)
• Pictionary (small groups)
• Jeopardy (PowerPoint for whole class) download
  Neuroscience for Kids Brain Games
• Online Quiz at the Mayo Clinic Brain Nervous
  System Center