RT Book, Section
A1 Hwang, George
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1102568900
T1 Parasympathetic Nervous System
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=1102568900
RD 2024/04/19
AB Like  the  sympathetic  nervous  system  (SNS),  the  parasympathetic  nervous  system  (PSNS)  also  begins  with  unmyelinated  preganglionic  neurons  and  ends  with  myelinated  postganglionic  neurons.  Parasympathetic  preganglionic  fibers  leave  the  central  nervous  system  (CNS)  in  both  cranial  and  sacral  nerves.  Cranial  fibers  arise  from  specific  parasympathetic  brainstem  motor  nuclei  of  cranial  nerves  III,  VII,  IX,  and  X,  traveling  with  the  main  body  of  fibers  within  the  cranial  nerves  to  ganglia  that  are  generally  distant  to  the  CNS  and  close  to  the  target  organ.  Sacral  outflow  originates  in  the  intermediolateral  gray  horns  of  the  second,  third,  and  fourth  sacral  nerves.