Anterolateral system

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In the nervous system, the anterolateral system is an ascending pathway that conveys pain and temperature (protopathic sensation) from the periphery to the brain. It comprises three main pathways:

Name Destination Function
spinothalamic tract (lateral and anterior) thalamus important in the localization of painful or thermal stimuli
spinoreticular tract reticular formation causes alertness and arousal in response to painful stimuli
spinotectal tract tectum orients the eyes and head towards the stimuli

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