Changes

Various regions of the [[Alimentary - Anatomy & Physiology|Alimentary Tract]] secrete[[Endocrine System - Hormones - Anatomy & Physiology|hormones]] which have various functions within the Gastrointestinal tract, liver, gall bladder and pancreas.

Various regions of the [[Alimentary - Anatomy & Physiology|Alimentary Tract]] secrete [[Endocrine System - Hormones - Anatomy & Physiology|hormones]] which have various functions within the Gastrointestinal tract, liver, gall bladder and pancreas.

Many of the hormones act in a ''paracrine'' fashion, exerting their effect on cells close to the secretion site without travelling in the bloodstream.

Many of the hormones act in a ''paracrine'' fashion, exerting their effect on cells close to the secretion site without travelling in the bloodstream.