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Cerebral Spinal FluidAka: CSF

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  1. See Also
    1. Intracranial Pressure Elevation Causes
    2. Cerebrospinal Fluid Examination
    3. Lumbar Puncture
  2. Physiology
    1. Choroid Plexus: Formation of CSF
      1. Tufts of capillaries in lateral ventricles
      2. Produces CSF at 20 ml/hour
    2. Pathway
      1. Produced in both lateral ventricles
      2. Each ventricle drains into a foramina of Monro
      3. Both foramina drain into a single third ventricle
      4. CSF flows into aqueduct of Sylvius
      5. Enters fourth ventricle in posterior fossa
      6. Seeps into subarachnoid space via 3 small holes
      7. CSF in subarachnoid space cushions brain and spine
      8. CSF reabsorbed by arachnoid granules (top of brain)
      9. CSF empties into superior sagital sinus (venous)
    3. CSF Volume
      1. Total CSF in circulation: 140 ml
      2. Distribution
        1. Ventricles: 25 ml
        2. Subarachnoid space: 115 ml

Cerebrospinal Fluid (C0007806)

Definition (CSP)clear colorless liquid secreted by the choroid plexus of the lateral, third, and fourth ventricles, and contained within the ventricular system of the brain and spinal cord and within the subarachnoid space.
Definition (UWDA)Transudate contained in the subarachnoid space.
Definition (NCI)(seh-REE-broe-SPY-nal) The fluid flowing around the brain and spinal cord. Cerebrospinal fluid is produced in the ventricles in the brain.
Definition (NCI)The fluid that is contained within the brain ventricles, the subarachnoid space and the central canal of the spinal cord.
ConceptsBody Substance (T031)
MSHD002555
EnglishCerebral Spinal Fluid, Cerebrospinal Fluid, Cerebrospinal Fluids, CSF, CSF - Cerebrospinal fluid, Spinal fluid
SpanishLCR, liquido cefalorraquideo, liquido raquideo
Parent ConceptsBody Fluids (C0005889), Neuraxis (C0927232), Body part (C0229962), Extracellular Fluid (C0015349), Cerebrospinal Fluid (C0007806), Duplicate concept (C1274013), Transudate (C0040767)
SourcesAOD, CSP, CST, HL7V2.5, LCH, LNC, MSH, MTH, NCI, SCTSPA, SNOMEDCT, UWDA
Derived from the NIH UMLS (Unified Medical Language System)


[D]Cerebrospinal fluid abnormality (C0151583)

ConceptsFinding (T033)
ICD9792.0
EnglishABN FND-CEREBROSPINAL FL, CEREBROSPINAL FLUID ABNORMAL, CSF ABNORMAL, Nonspecific abnormal findings in cerebrospinal fluid, SPINAL FLUID ABNORM
Parent ConceptsCerebrospinal Fluid (C0007806), CNS GENERAL (C0549638), Other nonspecific abnormal findings in body substances (C0159079), [D]Nonspecific findings in other body substances (C0476345), Duplicate concept (C1274013)
SourcesCST, ICD9CM, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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