1-28-08 anatomy notes

1-28-08 anatomy notes - 1-28-08 anatomy notes1.Organ...

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Unformatted text preview: 1-28-08 anatomy notes1.Organ System2.Nervous Systema.Central Nervous System-brain & spinal cordi.Meninges-covers brain and spinal cord1.Is a membrane2.Are 3 of thema.Dura Mater (1stof the meninges)-outermosti.Brain-2 layers1.Cranial or Periosteal Dura Mater1.Membrane is connected to inner surface of cranial bones (in direct contact w/cranial bone)i.Top layer of dura mater2.Meningeal Dura Mater-under top layer (cranial dura mater)1.Blood sinuses (spaces that separate cranial and meningeal dura mater)i.Filled with venous blood2.Partitions-when meningeal layer fuses w/itself to form a double layeri.2 major partitions associated w/brain (5 total): Falx cerebri-separates cerebral hemispheres; Falx cerebelli-separates cerebrum from cerebellumii.Spinal Cord-one layer ONLY1.Meningeal or Spinal Dura Mater1.Continuous w/meningeal DM2.NO periosteal DM over spinal cordiii.Subdural Space-potential space (means it contains fluid)1.Located between meningeal dm and arachnoid membrane1.Fluid connects to meningeal dm to arachnoid membrane...
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1-28-08 anatomy notes - 1-28-08 anatomy notes1.Organ...

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