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1. Digestive System and Derivatives Derivatives include respiratory system, liver, pancreas, gall bladder and endocrine structures
All are endodermal in origin
Digestive System includes digestive tract
Mouth & Pharynx Small Intestine
Esophagus Large Intestine
Stomach Cloaca (or derivative)
Also includes associated digestive glands: liver, pancreas and gall bladder