Sympathetic nervous system
Central nervous system (CNS)
Brain
Spinal cord
Parasympathetic nervous system
Autonomic nervous system (ANS)
Somatic nervous system
Peripheral nervous system (PNS)
subdivision of PNS and ANS whose stimulation results in responses that help your body deal with stressful events.
portion of the central nervous system above the spinal cord.
portion of the nervous system outside the brain and spinal cord; includes all of the sensory and motor neurons, and subdivisions called the autonomic and somatic nervous systems.
subdivision of PNS and ANS whose stimulation calms your body following sympathetic stimulation by restoring normal body processes.
subdivision of PNS that includes motor nerves that innervate smooth (involuntary) and heart muscle. Its sympathetic nervous system prepares the body for “fight or flight”; the parasympathetic nervous system causes bodily changes for maintenance or rest.
subdivision of PNS that includes motor nerves that stimulate skeletal (voluntary) muscles.
portion of the central nervous system below the level of the medulla
brain and spinal cord.