Changes

==Introduction==

==Introduction==

Sensory information from the periphery of the animal ascends through the [[Spinal Cord - Anatomy & Physiology|spinal cord]] and enters the higher levels of the brain. There are numerous pathways which allow different types of information to be passed to the brain. Types of general somatic sensation include pain, touch, temperature and kinaesthesia (conscious proprioception). This sensory information is sent to one of two destinations; the [[Forebrain - Anatomy & Physiology#Cerebral Coretex|cerebral cortex]] or the [[Hindbrain - Anatomy & Physiology#Cerebellum|cerebellum]].

Sensory information from the periphery of the animal ascends through the [[Spinal Cord - Anatomy & Physiology|spinal cord]] and enters the higher levels of the brain. There are numerous pathways which allow different types of information to be passed to the brain. Types of general somatic sensation include pain, touch, temperature and kinaesthesia (conscious proprioception). This sensory information is sent to one of two destinations; the [[Forebrain - Anatomy & Physiology#Cerebral Coretex|cerebral cortex]] or the [[Hindbrain - Anatomy & Physiology#Cerebellum|cerebellum]].

==Pain==

==Pain==

Painful stimuli can result in responses ranging from itches, to nausea, to simply being in agony. Painful stimuli may be transmitted to the brain by one of two pathways: the [[Sensory Pathways - Anatomy & Physiology#Spinothalamic Tract|Spinothalamic Tract]] or the [[Sensory Pathways - Anatomy & Physiology#Ascending Reticular Formation|Ascending Reticular Formation]].

Pain is not a sensory modality. The sensory modality that is checked in a neurologic exam is Nociception which is the patients response to a noxious stimuli. Pain is a subjective cerebral response. Noxious stimuli can result in responses ranging from itches, to nausea, to simply being in agony. Noxious stimuli may be transmitted to the brain by one of two pathways: the [[Sensory Pathways - Anatomy & Physiology#Spinothalamic Tract|Spinothalamic Tract]] or the [[Sensory Pathways - Anatomy & Physiology#Ascending Reticular Formation|Ascending Reticular Formation]].  

===Spinothalamic Tract===

===Spinothalamic Tract===

===Visceral Pain===

===Visceral Pain===

Visceral pain refers to pain related to the internal organs. Pain may be extreme, especially with distension, but the body's ability to localise the pain is poor. Skeletal muscle spasms may be observed during visceral pain. Commonly, the pain is referred to a different part of the body that is unharmed. This is because the areas are served by the same part of the [[Spinal Cord - Anatomy & Physiology|spinal cord]] e.g. in angina (pain in the heart), pain can be felt in the inner left arm or jaw. This is called ''referred pain''.

Visceral pain refers to pain related to the internal organs. Pain may be extreme, especially with distension, but the body's ability to localise the pain is poor. Skeletal muscle spasms may be observed during visceral pain. Commonly, the pain is referred to a different part of the body that is unharmed. This is because the areas are served by the same part of the [[Spinal Cord - Anatomy & Physiology|spinal cord]] e.g. in angina (pain in the heart), pain can be felt in the inner left arm or jaw. This is called ''referred pain''.

==Links==

==Links==

*[[:Category:Nervous System - Pathology|Pathology of the Nervous System]]

*[[:Category:Nervous System - Pathology|Pathology of the Nervous System]]

 

[[Category:Nervous System - Anatomy & Physiology]]

[[Category:Nervous System - Anatomy & Physiology]]

[[Category:A&P Done]]

[[Category:A&P Done]]