PSYA01H3 Lecture Notes - Lecture 12: Parasympathetic Nervous System, Sympathetic Nervous System, Peripheral Nervous System
Document Summary
Central nervous system refers to the brain/brain like tissues continue down back to end of spinal cord. Usually reflexes are focused on spinal cord brain tissue ex. Brain stem middle of brain (primitive survival of things) Cerebellum- area in the back of the brain/back bottom (motor skills) Peripheral nervous system takes signals from central nervous system and bring it to the rest of the body. Somatic system go directed behavior/ things we intend to do/ will. Sympathetic nervous system - heart beat increases, breathing is faster, prepares body for action. Parasympathetic nervous system - associated with relaxation, digestion, housekeeping everything is chilled, muscles relaxed, light breathing etc . Somatic/ adnomic system are co-related in some cases somatic system can overtake adnomic, something hot, u can"t drop or it will make a mess so you voluntarily carry is despite your. Axon is wrapped around by myelin sheets which is helpful in.
