Gastrointestinal Physiology
Gastrointestinal Physiology

Gastrointestinal Physiology

by Thad Wilson, PhD

Learn about the physiology of food intake and digestion

The gastrointestinal system determines the way nutrients enter and leave our bodies – a major component of keeping human beings alive and healthy. Understanding this system is essential for students of physiology and will prepare medical students for their exams and medical practice. In this course, Professor Thad Wilson delves into the particulars of the gastrointestinal system and its main components.

Among the topics covered in this course are the following:

  • the three main phases of digestion
  • the function of signaling molecules like hormones, neurocrines and paracrines 
  • purpose and regulation of the salivary glands and other gastrointestinal secretions
  • mechanisms and control of pancreatic, biliary and other lower secretions 
  • digestion of carbohydrates, fats and proteins 
  • absorption of basic macronutrients, ions and water
  • the mechanisms of gastrointestinal motility and secretion 

Upon completion of this course, you will have obtained a complete overview of the components and the function of the gastrointestinal system. Supported by straightforward schemata and graphics, Professor Wilson helps you understand the gastrointestinal system in its entirety, thus providing the foundation for your further education in medicine.

Course Details

  • Videos 30
  • Duration 1:57 h
  • Quiz questions 71
  • Articles 4


Your Educators of course Gastrointestinal Physiology

 Thad Wilson, PhD

Thad Wilson, PhD

Thad Wilson is a Professor of Physiology and has been teaching medical students for more than a dozen years at Colleges of Medicine in Philadelphia, PA (Drexel University); Athens, OH (Ohio University), and Indianapolis, IN (Marian University). He has worked extensively developing and improving medical curriculums, as well as serving in leadership roles as a Medical Physiology course director and Organ System team leader. Professor Thad Wilson has been awarded multiple medical school teaching awards and previously was involved in both question writing and question reviewing for national board exams in the health sciences. He currently helps students prepare for medical board exams, in addition to his teaching and scientific pursuits. Professor Thad Wilson has coauthored over 75 peer-reviewed scientific articles as well as a physiology textbook, Lippincott’s Illustrated Reviews: Physiology, which has been translated into four languages and a number of electronic formats.

User reviews

4,7 of 5 stars
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Well explained.
By Cher Yrish B. on 08. December 2019 for Absorption – Digestion and Absorption

Well explained and i clearly understand how digestion and absorption be done.

By Yasser Salih Y. on 30. November 2019 for Gastrointestinal Physiology

Short and precise videos. They are extensive and short. Would be nice if you had more of this kind on GI physiology though

Great Job
By Anita E. on 14. July 2019 for Gastrointestinal Physiology

Provided a cohesive picture in an order that made sense! I love the order that the videos are in to build that picture.

The lectures are really good
By Nivia R. on 15. June 2019 for Gastrointestinal Physiology

The way that Dr. Wilson teaches is really good and make things easier.