TY  - CHAP
M1  - Book, Section
TI  - Approach to the Patient with Gastrointestinal Disease
A1  - Hasler, William L.
A1  - Owyang, Chung
A2  - Kasper, Dennis
A2  - Fauci, Anthony
A2  - Hauser, Stephen
A2  - Longo, Dan
A2  - Jameson, J. Larry
A2  - Loscalzo, Joseph
PY  - 2014
T2  - Harrison's Principles of Internal Medicine, 19e
AB  - The  gastrointestinal  (GI)  tract  extends  from  the  mouth  to  the  anus  and  is  composed  of  several  organs  with  distinct  functions.  Specialized  independently  controlled  thickened  sphincters  that  assist  in  gut  compartmentalization  separate  the  organs.  The  gut  wall  is  organized  into  well-defined  layers  that  contribute  to  functional  activities  in  each  region.  The  mucosa  is  a  barrier  to  luminal  contents  or  a  site  for  transfer  of  fluids  or  nutrients.  Gut  smooth  muscle  in  association  with  the  enteric  nervous  system  mediates  propulsion  from  one  region  to  the  next.  Many  GI  organs  possess  a  serosal  layer  that  provides  a  supportive  foundation  but  that  also  permits  external  input.  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2021/04/19
UR  - accessmedicine.mhmedical.com/content.aspx?aid=1120810257
ER  -