10. The Gastrointestinal Tract

  1. Dr Susan A Lanham-New3,
  2. Professor Ian A Macdonald4 and
  3. Associate Professor Helen M Roche5
  1. Professor Mariano Mañas1,
  2. Professor Emilio Martínez de Victoria1,
  3. Professor Angel Gil1,
  4. Dr María D Yago1 and
  5. Professor John C Mathers2

Published Online: 16 MAR 2011

DOI: 10.1002/9781444327779.ch10

Nutrition and Metabolism, Second Edition

Nutrition and Metabolism, Second Edition

How to Cite

Mañas, M., de Victoria, E. M., Gil, A., Yago, M. D. and Mathers, J. C. (2010) The Gastrointestinal Tract, in Nutrition and Metabolism, Second Edition (eds S. A. Lanham-New, I. A. Macdonald and H. M. Roche), Wiley-Blackwell, Oxford, UK. doi: 10.1002/9781444327779.ch10

Editor Information

  1. 3

    University of Surrey, UK

  2. 4

    University of Nottingham, UK

  3. 5

    University College Dublin, Ireland

Author Information

  1. 1

    Universidad de Granada, Spain

  2. 2

    University of Newcastle, UK

Publication History

  1. Published Online: 16 MAR 2011
  2. Published Print: 19 NOV 2010

ISBN Information

Print ISBN: 9781405168083

Online ISBN: 9781444327779



  • gastrointestinal tract;
  • four basic processes, functions of gastrointestinal tract - motility, secretion, digestion and absorption;
  • digestive processes - determined by composition of food ingested;
  • gastrointestinal system structure - gastrointestinal tract (GIT) and accessory glands;
  • swallowing, rigidly ordered reflex - food propulsion from mouth to stomach;
  • net intestinal fluid transport – balance, intestinal water absorption and secretion;
  • water balance, in gastrointestinal tract;
  • enzymes, in pancreatic juice - substrate digested;
  • pancreatic insufficiency effect - on nutrition;
  • biological effects of dietary fatty acids - incorporation into cellular structures of organs and tissues


This chapter contains sections titled:

  • Introduction

  • Structure and function of the gastrointestinal system

  • Motility

  • Secretion

  • Digestion and absorption

  • Water balance in the gastrointestinal tract

  • The exocrine pancreas

  • Diet and exocrine pancreatic function

  • Interactions between the endocrine and exocrine pancreas

  • Physiology of bile secretion and enterohepatic circulation

  • Adaptation of the biliary response to the diet

  • Growth, development and differentiation of the gastrointestinal tract

  • The large bowel

  • Future directions

  • Further reading