RT Book, Section
A1 Freeman, Brian S.
A1 Berger, Jeffrey S.
SR Print(0)
ID 1204769020
T1 Anatomy of the Meninges
T2 Anesthesiology Core Review: Part One: BASIC Exam, 2<sup>nd</sup> Edition
YR 2024
FD 2024
PB McGraw-Hill Education
PP New York, NY
SN 9781264285518
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1204769020
RD 2024/10/10
AB The  brain,  as  well  as  the  spinal  cord,  is  surrounded  by  three  layers  of  membranes:  a  tough  outer  layer  (dura  mater);  a  delicate,  middle  layer  (arachnoid  mater);  and  an  inner  layer,  firmly  attached  to  the  surface  of  the  brain  (pia  mater).  Figure  139-1  illustrates  these  relationships.  The  cranial  meninges  are  continuous  with,  and  similar  to,  the  spinal  meninges  through  the  foramen  magnum.  However,  there  is  one  important  distinction:  The  cranial  dura  mater  consists  of  two  layers,  and  only  one  of  these  is  continuous  through  the  foramen  magnum.