The Nervous System

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The Nervous System

• Fetal Pig Dissection Part 6

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Hyperpolarization
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The Cranial Nerves (See Packet)
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The Brain
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Your Dissection
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Brain Anatomy

• Arbor Vitae (Tree of Life) branched white
  matter within the cerebellum
• Circle of Willis arteries supplying blood to
  the base of the brain
• Hypophysis pituitary gland
• Meninges, Dura Mater, Pia Mater, Arachnoid
  membranes covering brain and spinal cord

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The Eye
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Backside view
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Your Dissection
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Eye Anatomy

• Sclera White, outer fibrous layer
• Choroid many blood vessels, absorbs stray rays
  of light
• Ciliary muscle controls the shape of the lens
• Iris regulates the size of the pupil
• Vitreous Humor jelly like fluid behind the lens

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Eye Anatomy

• Aqueous Humor watery fluid between cornea and
  lens
• Retina dark shiny layer