what is the cellular level of the digestive system

Answer 1

Since this is not my area of expertise, I searched Google under the key words "'digestive system' cellular" to get these possible sources:

http://www.medicalook.com/human_anatomy/systems/Digestive_system.html
(Broken Link Removed)
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=43489
http://ect.downstate.edu/courseware/histomanual/digestive.html
http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Human-Digestive-System.topicArticleId-8741,articleId-8705.html

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.