Cerebrospinal fluid

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6 Terms

1
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Cerebrospinal fluid

watery fluid derived from blood plasma; protects the brain by surrounding providing cushioning

2
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role of choroid plexus in relation to CSF

CSF formed and secretied by choroid plexus into spaces of Brian called ventricles

3
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where is choroid plexus located

knots of capillaries

4
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how many ventricles are in the human brain 

four fluid filled ventricles 

  • 2 lateral, third and fourth 

5
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Flow of CSF

  1. CSF secreted by choroid plexus in each lateral ventricle

  2. CSF flows through interventricular foramina into third ventricle

  3. choroid plexus in third ventricle adds more CSF

  4. CSF flows down cerebral aqueduct to forth ventricle

  5. choroid plexus in fourth ventricle adds more CSF

  6. CSF flows out to lateral apertures and one median aperture

  7. CSF fills subarachnoid space and bathes external surfaces of brain and spinal cord

  8. at arachnoid villi, CSF is reabsorbed into venous blood of dural venous sinuses

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clinical correlation

dilation of fluid-filled ventricles characterizes the condition known as hydrocephalus → associated with autism and schizophrenia