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[[Image:mainpagecnsbrain.jpg|thumb|right|300px|Saggital section of equine brain - © RVC]]

[[Image:mainpagecnsbrain.jpg|thumb|right|300px|Saggital section of equine brain - © RVC]]

==Nervous System==

==Nervous System==

The physiology of the nervous system can be explored at the level of a nerve cell, or [[Neurons - Anatomy & Physiology|'neuron']]. Communication between these cells uses electrical or chemical signals known as [[Neurotransmitters - Anatomy & Physiology|neurotransmitters]]; the cellular response generated in response to this signalling is known as an [[Action Potentials - Anatomy & Physiology|action potential]].

The physiology of the nervous system can be explored at the level of a nerve cell, or [[Neurons - Anatomy & Physiology|'neuron']]. Communication between these cells uses electrical or chemical signals known as [[Neurotransmitters - Anatomy & Physiology|neurotransmitters]]; the cellular response generated in response to this signalling is known as an action potential.

===Central Nervous System (CNS)===

===Central Nervous System (CNS)===

===Peripheral Nervous System (PNS)===

===Peripheral Nervous System (PNS)===

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The Peripheral Nervous System includes both [[#Innervation - cranial nerves| cranial nerves]] and [[#Innervation - spinal nerves| spinal nerves]], and is commonly divided into the somatic nervous system and the autonomic nervous system. The [[Somatic Nervous System - Anatomy & Physiology|somatic nervous system]] co-ordinates body movements and also receives external stimuli. It basically regulates activities that are under conscious control.

The Peripheral Nervous System includes both [[#Innervation - cranial nerves| cranial nerves]] and [[#Innervation - spinal nerves| spinal nerves]], and is commonly divided into the somatic nervous system and the autonomic nervous system. The somatic nervous system co-ordinates body movements and also receives external stimuli. It basically regulates activities that are under conscious control.

The [[Autonomic Nervous System - Anatomy & Physiology|autonomic nervous system]] contains the [[Sympathetic Nervous System - Anatomy & Physiology|sympathetic nervous system]] and the [[Parasympathetic Nervous System - Anatomy & Physiology|parasympathetic nervous system]] as well as an enteric division. The sympathetic nervous system is the ‘fight or flight’ system which is triggered when an animal is under threat; it's main neurotransmitter is adrenaline. The parasympathetic nervous system is the ‘rest and digest’ system which is responsible for digestion; the primary neurotransmitter is acetylcholine. Further information on the structure, physiology and pathology of the PNS is available from the following links:

The autonomic nervous system contains the sympathetic nervous system and the parasympathetic nervous system as well as an enteric division. The sympathetic nervous system is the ‘fight or flight’ system which is triggered when an animal is under threat; it's main neurotransmitter is adrenaline. The parasympathetic nervous system is the ‘rest and digest’ system which is responsible for digestion; the primary neurotransmitter is acetylcholine. Further information on the structure, physiology and pathology of the PNS is available from the following links:

*[[PNS Structure - Anatomy & Physiology|Structure]]

*[[PNS Structure - Anatomy & Physiology|Structure]]