RT Book, Section
A1 Lopatin, Jonah
A1 Jivan, Kuntal
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1102567475
T1 Spinal Anesthesia
T2 Anesthesiology Core Review: Part One Basic Exam
YR 2014
FD 2014
PB McGraw-Hill Education
PP New York, NY
SN 9780071821377
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102567475
RD 2024/04/23
AB The  epidural  space  lies  between  the  walls  of  the  vertebral  canal  and  the  meninges.  The  meninges  are  composed  of  three  distinct  layers  (dura,  arachnoid,  and  pia  mater)  that  are  continuous  cephalad  with  the  cranial  meninges.  Dura  mater,  the  outermost  layer,  extends  from  the  foramen  magnum  to  S2  in  adults  where  it  fuses  with  the  filum  terminale.  The  innermost  layer  of  dura  mater  is  highly  vascular  and  serves  as  the  principal  route  for  elimination  of  drugs  in  the  epidural  and  subarachnoid  space.  The  arachnoid  mater  lies  deep  in  the  dura  and  serves  as  a  tight  barrier,  separating  the  spinal  cord  from  the  epidural  space.  A  potential  space  exists  between  the  dura  and  arachnoid  mater.  The  pia  mater  is  the  deepest  layer  of  the  spinal  meninges  and  adheres  to  the  spinal  cord.  The  subarachnoid  space  lies  between  the  arachnoid  and  pia  mater,  and  contains  the  cerebrospinal  fluid  (CSF).