NERVE SYSTEM

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NERVE SYSTEM POST LAB
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OVERVIEW OF SPINE REMEMBER WHITE GRAY SWITCH
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Ventral Horn Containing nerve cell bodies
Glial cells only- What color matter?
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Arachnoid
Pia
Virchow- Robbins Space
Subarachnoid Space
MENINGES
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Choroid Plexus Where? Remember ependymal cells
(Glial) And what do they synthesize and secrete?
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Ependymal cells
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This stuff is formed by which cells? And it is
made of ? And forms part of which barrier?
Corpora Amylacea
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A astrocytes which contain ? Ooligodendrocytes
which make What?
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• Neurons
• Identify
• Nissl substance
• Nucleus
• Nucleolus
• Axon hillock
• Dendrites

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Oligos, astros and dendrites which is which?
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What is present in this structure that makes this
a ganglion?
Ganglion
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Note NCB, endoneurium and Perineurium
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Connective tissue layers learn these
En
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COMPARE
Muscle Fibers
Nerve Fibers
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Schwann cell myelination of single axon
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Remember Meissners and Auerbachs Plexi in the
GI Submucosa v Muscularis externa
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Between 2 muscle layers therefore an Auerbachs.
Wheres Meissners
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Nerve cell bodies in this HP of Meissners so it
is a ganglion
Meissners Plexus - NOT Meissners Corpuscle in
the Submucosa of GI
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Pacinian Corpuscle in skin
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MEISSNERS CORPUSCLE IN SKIN
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Clinical Correlate

• Nervous Tissue

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Encephalitis

• Encephalitis is typically caused by viral
  infections of the brain
• Herpes simplex
• Cytomegalovirus
• Polio virus (more often affect spinal cord rather
  than brain)
• Classic hallmark is presence of perivascular
  cuffs of lymphocytes (aggregates of lymphocytes
  surrounding the small arteries and arterioles)

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Encephalitis

• Lymphocytes surround small blood vessels, called
  lymphocyte cuffing

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Encephalitis

• Neuronophagia (arrows) refers to dead or dying
  neurons surrounded by clusters of microglial
  cells (which are normally indistinct in brain
  tissue)

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The beginnings of lobotomy can be traced back to
1847 in America. An explosion drove an iron bar
through the front part of the head of an Irish
mine worker named Phineas Gage, who actually
survived. The doctors were interested to discover
that not only did he survive, his personality was
completely changed. In 1890, this inspired Dr.
Gottlieb Burckhardt, superintendent of a German
psychiatric hospital, to drill holes into the
heads of six severely agitated patients and
extract material from the frontal lobe.
http//scienceblogs.com/neurophilosophy/2007/07/in
venting_the_lobotomy.php