Biophyc qs Flashcards
What is the nervous system based on
electrical and chemical signals
What are the main functions of the nervous system
to collect process and respond to information in the environment
to coordinate the working of different cells and organs in the body
What makes up the CNS
brain and spinal cord
What does the spinal cord do
pass messages to and from the brain
connect CNS to PNS
what does the brain do
key information processor in the body
responsible for conscious awareness and higher mental functions
has two hemispheres and a number of specialised regions
What is the outer layer of the brain called ad how thick is it
cerebral cortex and 3mm
What does the PNS do in general
sends information from the outside world to the CNS
transmits information from the CNS to the effectors
made up of sensory and motor neurones
What is the PNS divided into
the ANS - AUTONOMIC
the SNS- SOMATIC
