Nervous system Flashcards
What is the main function of the nervous system
collect, process and respond to info from environment
What is our nervous system
primary communications system which communicates with fast moving electrical signals.
What are the effects of these electrical systems
Fast acting, short acting
What does our central nervous system do
Complex decisions
What does our nervous system split into
-Central nervous system
-Peripheral nervous system
What does our peripheral nervous system do
send info from outside world to CNS and body
What does our central nervous system split into
-Brain
-Spinal cord
What does our peripheral nervous system split into
-Somatic nervous system
-Autonomic nervous system
What does our somatic nervous system do
voluntary muscle movement
What does our autonomic nervous system do
Involuntary muscle movement
What does our autonomic nervous split into
-Sympathetic nervous system
-Parasympathetic nervous system
What does our sympathetic nervous system do
Fight/Flight reaction
What does our parasympathetic nervous system do
Rest/digest after fight/flight
What is a neuron
A Nerve cell
What are the 3 main types of neurons
-Sensory
-Relay
-Motor
What are the components of a sensory neuron
-Cell body
-Connects to receptor cell
-Axon
-Mylein sheath
-Neurofibril node