Changes

When a harmful substance is ingested the body acts to eliminate it in different ways to prevent the animal becoming ill, for example, through [[Control of Feeding - Anatomy & Physiology#The Vomit Reflex|vomiting]] or diarrhoea. If one or more of the [[Control of Feeding - Anatomy & Physiology#Neuroendocrine Regulation of Feeding|neuroendocrine pathways]] involved with the control of feeding is damaged or inhibited, then problems such as obesity can occur.  

When a harmful substance is ingested the body acts to eliminate it in different ways to prevent the animal becoming ill, for example, through [[Control of Feeding - Anatomy & Physiology#The Vomit Reflex|vomiting]] or diarrhoea. If one or more of the [[Control of Feeding - Anatomy & Physiology#Neuroendocrine Regulation of Feeding|neuroendocrine pathways]] involved with the control of feeding is damaged or inhibited, then problems such as obesity can occur.  

There are many species differences in the phsiology of feeding, from different [[Control of Feeding - Anatomy & Physiology#Feeding Methods|feeding methods]] to adaptations during the digestive process such as [[Rumination - Anatomy & Physiology|rumination]] and [[Eructation - Anatomy & Physiology|eructation]].

There are many species differences in the phsiology of feeding, from different [[Control of Feeding - Anatomy & Physiology#Feeding Methods|feeding methods]] to adaptations during the digestive process such as additional cycles of [[Mastication|mastication]] which is seen during [[Rumination - Anatomy & Physiology|rumination]] and [[Eructation - Anatomy & Physiology|eructation]].

*[[Control of Feeding - Anatomy & Physiology#Phases of Gastric Secretion|Phases of Gastric Secretion]]

*[[Control of Feeding - Anatomy & Physiology#Phases of Gastric Secretion|Phases of Gastric Secretion]]

*[[Mastication]]

==The Avian Digestive Tract==

==The Avian Digestive Tract==