Changes

== Basic Anatomy and Physiology ==

== Basic Anatomy and Physiology ==

The intestines are a portion of the alimentary tract extending from the pylorus to the anus.  In mammals, the intestines are divided into two main segments:  the small intestine and the large intestine.  Each is further subdivided: the small intestine consisting of the duodenum, jejunum and ileum and the large intestine consisting of the caecum and colon (Dyce, 2002).   

The intestines are a portion of the alimentary tract extending from the pylorus to the anus.  In mammals, the intestines are divided into two main segments:  the small intestine and the large intestine.  The small intestine consists of the duodenum, jejunum and ileum and the large intestine consists of the caecum and colon (Dyce, 2002).   

=== Cell types  ===

=== Cell types  ===

=== Defense Mechanisms ===

=== Defense Mechanisms ===