Please enable JavaScript.
Coggle requires JavaScript to display documents.
divisions of the nervous system - Coggle Diagram
divisions of the nervous system
the nervous system
main functions
collect,process and respond to information in the environment
to coordinate the working of different organs and cells in the body
specialised network of cells
primary internal communication system
nervous system
central nervous system
spinal cord
brain
peripheral nervous system
somatic nervous system
autonomic nervous system
sympathetic nervous system
parasympathetic nervous system,
the central nervous system
main functions
control of behaviour
regulation of body physiological processes
brain
centre of all conscious awareness
divided into cerebrum, cerebellum, diencephalon and brain stem
spinal cord
extension of brain
responsible for reflex actions
passes messages to and from brain
connects nerves to PNS
peripheral nervous system
transmits messages, via millions of neutrons to and from CNS
somatic nervous system
controls voluntary muscle movement
receives info from sensory receptors
involved in reflex actions without involvement of CNS
carries commands from motor cortex
deals with external environment
autonomic nervous system
parasympathetic branch
relaxes body
rest and digest response
sympathetic branch
arouses the body
fight or flight response
controls involuntary actions eg.heart rate, digestion, breathing, stress
self regulating