NEUR 2P36 Lecture Notes - Lecture 2: Peripheral Nervous System, Central Nervous System, Autonomic Nervous System
4 Oct 2016
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Document Summary
From having the organism manage his/her environment. To having the organishm interact with his/her external. Peripheral nervous system: somatic division (voluntary muscle activation, autonomic division. Sagittal (divides different side of the brain) Highway/pathway system of pns to cns (both motoric and sensory-somatic and cranial) Reticular activation system (ras); arousal, wakefulness, alertness, reaction to stimuli. Means bridge and it acts in this way between the cns and the cerebellum. It has a role in coordinating eye movements; postural & kinaesthetic (muscle movement) sense. It also is responsible for sleep and wake onset. Has 3 different sets of neuron pathways. Auditory and visual sensory information integrated with reflexive responses and muscle movement (ex. Lateral hemispheres have intimate connections to cerebrum via cortico-ponto-cerebellar tract- contralateral representation. Dedicated to the control and coordination of discrete fine moto actions, time judgements and feedback from vision, balance permits grasping skills to gymnastics.
