The nervous system has a dramatic effect on all digestive processes, particularly in the cases of motility, gastrointestinal blood flow and in ion transport associated with secretion and absorption. To a certain extent, this control is a result of connections between the digestive system and central nervous system, but of equal importance, the digestive system actually has its own, local nervous system. This system is commonly known as the enteric or intrinsic nervous system. Despite being local, this system is extremely complex and actually consists of as many neurons as the whole spinal cord. This enteric nervous system constitutes part of ...
Immune system connections are highlighted.