The structure & function of nervous system
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9 Terms
What does the nervous system divide into
The CNS and the PNS
What does the CNS made of
The brain and spinal cord
What does the PNS split into
The ANS and the SNS
What does the ANS split into
Sympathetic division and the parasympathetic division
What does the nervous system do
Collects and respond to info in environment
Controls the working of different organs and cells e.g. brain
function of central nervous system
Brain divided into 2 hemispheres - right controls left side of body vice versa
Brain = centre of conscious awareness , where all decision making takes place
Brain stem = base of brain = controls autonomic functions & reflex responses
function of PNS
receives messages from CNS and sends messages to it by neurones
ANS function
Controls involuntary functions
E.g. breathing , heat rate , digestion
SNS function
controls voluntary action of muscles and reflex responses = send info from brain to muscles
Takes in info from sensory organs
Note 
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