Organization Of Nervous System Flashcards
Central nervous system consists of:
Brain, brainstem, spinal cord
Peripheral nervous system consists of:
Cranial and spinal nerves
CNS responsible for
Sensory activities, storing memories and emotions
PNS responsible for
Brings messages to and from the CNS to the rest of the body
Autonomic nervous system
Responsible for involuntary actions
Parasympathetic nervous system
Responsible for rest relax actions
Sympathetic nervous system
Responsible for flight a fight response
Somatic nervous system
Responsible for voluntary movement
Pyramidal
Initiation of voluntary motor acts
Extrapyramidal
Control of background muscle tone, & movements, that support primary, voluntary acts
CNS dedicates most energy to
Inhibition
Left hemisphere
Language, calculation, logic, right body movement/sensation
Right hemisphere
Spatial, music, faces, abstract, left body movement/sensation
More cells in the brain that control:
Hands, face, mouth
Fiber tracts
Bundle of nerve axons traveling in same direction
